diff --git a/backend/internal/handler/merchant_platform.go b/backend/internal/handler/merchant_platform.go
index 4ce4650..d453335 100644
--- a/backend/internal/handler/merchant_platform.go
+++ b/backend/internal/handler/merchant_platform.go
@@ -180,3 +180,71 @@ func (h *MerchantHandler) AdminUpdateMerchantAccount(c *gin.Context) {
 	}
 	response.OK(c, account)
 }
+
+// ListPlatformMerchantMembers GET /api/platform/merchants/:id/members
+func (h *MerchantHandler) ListPlatformMerchantMembers(c *gin.Context) {
+	id, _ := strconv.ParseUint(c.Param("id"), 10, 64)
+	if id == 0 {
+		response.BadRequest(c, "商户 ID 无效")
+		return
+	}
+	members, err := h.merchantSvc.ListMembers(uint(id))
+	if err != nil {
+		response.ServerError(c, err.Error())
+		return
+	}
+	response.OK(c, members)
+}
+
+// UpdatePlatformMerchantMember PATCH /api/platform/merchants/:id/members/:mid
+func (h *MerchantHandler) UpdatePlatformMerchantMember(c *gin.Context) {
+	id, _ := strconv.ParseUint(c.Param("id"), 10, 64)
+	mid, _ := strconv.ParseUint(c.Param("mid"), 10, 64)
+	if id == 0 || mid == 0 {
+		response.BadRequest(c, "参数无效")
+		return
+	}
+	var req updateMemberReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "参数错误：角色必填")
+		return
+	}
+	member, err := h.merchantSvc.UpdateMember(uint(id), uint(mid), service.UpdateMemberInput{
+		Role: req.Role, Status: req.Status, IsDefault: req.IsDefault,
+	}, middleware.GetUserID(c))
+	if err != nil {
+		response.BadRequest(c, err.Error())
+		return
+	}
+	response.OK(c, member)
+}
+
+// DeletePlatformMerchantMember DELETE /api/platform/merchants/:id/members/:mid
+func (h *MerchantHandler) DeletePlatformMerchantMember(c *gin.Context) {
+	id, _ := strconv.ParseUint(c.Param("id"), 10, 64)
+	mid, _ := strconv.ParseUint(c.Param("mid"), 10, 64)
+	if id == 0 || mid == 0 {
+		response.BadRequest(c, "参数无效")
+		return
+	}
+	if err := h.merchantSvc.RemoveMember(uint(id), uint(mid), middleware.GetUserID(c)); err != nil {
+		response.BadRequest(c, err.Error())
+		return
+	}
+	response.OK(c, nil)
+}
+
+// ListPlatformMerchantRoles GET /api/platform/merchants/:id/roles
+func (h *MerchantHandler) ListPlatformMerchantRoles(c *gin.Context) {
+	id, _ := strconv.ParseUint(c.Param("id"), 10, 64)
+	if id == 0 {
+		response.BadRequest(c, "商户 ID 无效")
+		return
+	}
+	roles, err := h.merchantSvc.ListRoles(uint(id))
+	if err != nil {
+		response.ServerError(c, err.Error())
+		return
+	}
+	response.OK(c, roles)
+}
diff --git a/backend/internal/router/router.go b/backend/internal/router/router.go
index 507a38a..c171d3c 100644
--- a/backend/internal/router/router.go
+++ b/backend/internal/router/router.go
@@ -243,7 +243,11 @@ func Setup(h *Handlers) *gin.Engine {
 			platform.GET("/platform/orders", h.Merchant.ListPlatformOrders)
 			platform.POST("/platform/merchants", h.Merchant.CreateMerchant)
 			platform.PATCH("/platform/merchants/:id", h.Merchant.UpdateMerchantSettings)
+			platform.GET("/platform/merchants/:id/members", h.Merchant.ListPlatformMerchantMembers)
 			platform.POST("/platform/merchants/:id/members", h.Merchant.AddPlatformMerchantMember)
+			platform.PATCH("/platform/merchants/:id/members/:mid", h.Merchant.UpdatePlatformMerchantMember)
+			platform.DELETE("/platform/merchants/:id/members/:mid", h.Merchant.DeletePlatformMerchantMember)
+			platform.GET("/platform/merchants/:id/roles", h.Merchant.ListPlatformMerchantRoles)
 			platform.GET("/platform/product-catalog", h.Merchant.ListProductCatalog)
 			platform.GET("/platform/merchants/:id/products", h.Merchant.ListMerchantProductsByAdmin)
 			platform.PATCH("/platform/merchants/:id/products/:pid", h.Merchant.AdminUpdateMerchantProduct)
diff --git a/backend/internal/router/router_test.go b/backend/internal/router/router_test.go
index edb48e9..6e6f995 100644
--- a/backend/internal/router/router_test.go
+++ b/backend/internal/router/router_test.go
@@ -213,3 +213,30 @@ func TestRequestLoggerSuppressesPollingOnInfo(t *testing.T) {
 		t.Errorf("expected GET order to appear as [DEBUG] in DEBUG mode, got: %s", buf.String())
 	}
 }
+
+// TestPlatformMerchantMembersRoutes 验证平台管理员访问商户成员与角色接口完全独立于 X-Merchant-ID。
+func TestPlatformMerchantMembersRoutes(t *testing.T) {
+	engine, jm := newTestRouter(t)
+	token, err := jm.Generate(1, "admin", model.RoleAdmin)
+	if err != nil {
+		t.Fatalf("generate token: %v", err)
+	}
+
+	// 1. 获取商户 1 的成员列表
+	req := httptest.NewRequest("GET", "/api/platform/merchants/1/members", nil)
+	req.Header.Set("Authorization", "Bearer "+token)
+	w := httptest.NewRecorder()
+	engine.ServeHTTP(w, req)
+	if w.Code != 200 {
+		t.Fatalf("平台管理员查询商户成员应返回 200，实际 %d: %s", w.Code, w.Body.String())
+	}
+
+	// 2. 获取商户 1 的角色列表
+	req = httptest.NewRequest("GET", "/api/platform/merchants/1/roles", nil)
+	req.Header.Set("Authorization", "Bearer "+token)
+	w = httptest.NewRecorder()
+	engine.ServeHTTP(w, req)
+	if w.Code != 200 {
+		t.Fatalf("平台管理员查询商户角色应返回 200，实际 %d: %s", w.Code, w.Body.String())
+	}
+}
diff --git a/frontend/src/api/index.ts b/frontend/src/api/index.ts
index a434068..e82dc0b 100644
--- a/frontend/src/api/index.ts
+++ b/frontend/src/api/index.ts
@@ -230,10 +230,21 @@ export const platformApi = {
   }) => request.post('/platform/merchants', data).then((r) => r.data.data as Merchant),
   updateMerchant: (id: number, data: Partial<Merchant>) =>
     request.patch(`/platform/merchants/${id}`, data).then((r) => r.data.data),
+  members: (merchantId: number) =>
+    request.get(`/platform/merchants/${merchantId}/members`).then((r) => r.data.data as MerchantMember[]),
   addMember: (
     merchantId: number,
-	data: { user_id?: number; username?: string; password?: string; nickname?: string; role: string; is_default?: boolean },
+    data: { user_id?: number; username?: string; password?: string; nickname?: string; role: string; is_default?: boolean },
   ) => request.post(`/platform/merchants/${merchantId}/members`, data).then((r) => r.data.data as MerchantMember),
+  updateMember: (
+    merchantId: number,
+    memberId: number,
+    data: { role: string; status: number; is_default: boolean },
+  ) => request.patch(`/platform/merchants/${merchantId}/members/${memberId}`, data).then((r) => r.data.data as MerchantMember),
+  removeMember: (merchantId: number, memberId: number) =>
+    request.delete(`/platform/merchants/${merchantId}/members/${memberId}`).then((r) => r.data.data),
+  roles: (merchantId: number) =>
+    request.get(`/platform/merchants/${merchantId}/roles`).then((r) => r.data.data as MerchantRole[]),
   productCatalog: () =>
     request.get('/platform/product-catalog').then((r) => r.data.data as ProductCatalogItem[]),
   merchantProducts: (merchantId: number) =>
diff --git a/frontend/src/components/MerchantMembersDrawer.tsx b/frontend/src/components/MerchantMembersDrawer.tsx
new file mode 100644
index 0000000..208fa50
--- /dev/null
+++ b/frontend/src/components/MerchantMembersDrawer.tsx
@@ -0,0 +1,400 @@
+import { useEffect, useState } from 'react'
+import {
+  Drawer,
+  Table,
+  Button,
+  Space,
+  Tag,
+  Badge,
+  Modal,
+  Form,
+  Input,
+  Select,
+  Radio,
+  Switch,
+  Popconfirm,
+  Typography,
+  message,
+} from 'antd'
+import { PlusOutlined, ReloadOutlined, UserOutlined } from '@ant-design/icons'
+import { platformApi } from '../api'
+import type { MerchantMember, MerchantRole } from '../types'
+import type { ColumnsType } from 'antd/es/table'
+
+interface MerchantMembersDrawerProps {
+  open: boolean
+  merchantId: number | null
+  merchantName?: string
+  merchantCode?: string
+  onClose: () => void
+}
+
+export function MerchantMembersDrawer({
+  open,
+  merchantId,
+  merchantName,
+  merchantCode,
+  onClose,
+}: MerchantMembersDrawerProps) {
+  const [loading, setLoading] = useState(false)
+  const [members, setMembers] = useState<MerchantMember[]>([])
+  const [roles, setRoles] = useState<MerchantRole[]>([])
+
+  // 添加成员弹窗状态
+  const [addModalOpen, setAddModalOpen] = useState(false)
+  const [addMode, setAddMode] = useState<'create' | 'link'>('create')
+  const [addLoading, setAddLoading] = useState(false)
+  const [addForm] = Form.useForm()
+
+  // 编辑成员弹窗状态
+  const [editModalOpen, setEditModalOpen] = useState(false)
+  const [editingMember, setEditingMember] = useState<MerchantMember | null>(null)
+  const [editLoading, setEditLoading] = useState(false)
+  const [editForm] = Form.useForm()
+
+  const loadData = async (mid: number) => {
+    setLoading(true)
+    try {
+      const [membersData, rolesData] = await Promise.all([
+        platformApi.members(mid),
+        platformApi.roles(mid),
+      ])
+      setMembers(membersData || [])
+      setRoles(rolesData || [])
+    } catch (e) {
+      message.error(e instanceof Error ? e.message : '获取成员列表失败')
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  useEffect(() => {
+    if (open && merchantId) {
+      void loadData(merchantId)
+    } else {
+      setMembers([])
+      setRoles([])
+    }
+  }, [open, merchantId])
+
+  const roleNameMap = new Map<string, string>()
+  roles.forEach((r) => roleNameMap.set(r.code, r.name))
+
+  const handleOpenAdd = () => {
+    addForm.resetFields()
+    setAddMode('create')
+    setAddModalOpen(true)
+  }
+
+  const handleAddSubmit = async () => {
+    if (!merchantId) return
+    try {
+      const values = await addForm.validateFields()
+      setAddLoading(true)
+      const payload: {
+        role: string
+        is_default?: boolean
+        user_id?: number
+        username?: string
+        password?: string
+        nickname?: string
+      } = {
+        role: values.role,
+        is_default: !!values.is_default,
+      }
+      if (addMode === 'link') {
+        payload.user_id = Number(values.user_id)
+      } else {
+        payload.username = values.username
+        payload.password = values.password
+        payload.nickname = values.nickname
+      }
+      await platformApi.addMember(merchantId, payload)
+      message.success('成员添加成功')
+      setAddModalOpen(false)
+      void loadData(merchantId)
+    } catch (e) {
+      message.error(e instanceof Error ? e.message : '添加成员失败')
+    } finally {
+      setAddLoading(false)
+    }
+  }
+
+  const handleOpenEdit = (record: MerchantMember) => {
+    setEditingMember(record)
+    editForm.setFieldsValue({
+      role: record.role,
+      status: record.status === 1,
+      is_default: record.is_default,
+    })
+    setEditModalOpen(true)
+  }
+
+  const handleEditSubmit = async () => {
+    if (!merchantId || !editingMember) return
+    try {
+      const values = await editForm.validateFields()
+      setEditLoading(true)
+      await platformApi.updateMember(merchantId, editingMember.id, {
+        role: values.role,
+        status: values.status ? 1 : 0,
+        is_default: !!values.is_default,
+      })
+      message.success('成员更新成功')
+      setEditModalOpen(false)
+      void loadData(merchantId)
+    } catch (e) {
+      message.error(e instanceof Error ? e.message : '更新成员失败')
+    } finally {
+      setEditLoading(false)
+    }
+  }
+
+  const handleRemove = async (memberId: number) => {
+    if (!merchantId) return
+    try {
+      await platformApi.removeMember(merchantId, memberId)
+      message.success('已移除成员')
+      void loadData(merchantId)
+    } catch (e) {
+      message.error(e instanceof Error ? e.message : '移除失败')
+    }
+  }
+
+  const columns: ColumnsType<MerchantMember> = [
+    {
+      title: '用户名',
+      dataIndex: ['user', 'username'],
+      key: 'username',
+      render: (text) => (
+        <Space size="small">
+          <UserOutlined style={{ color: '#94a3b8' }} />
+          <Typography.Text strong>{text}</Typography.Text>
+        </Space>
+      ),
+    },
+    {
+      title: '姓名 / 昵称',
+      dataIndex: ['user', 'nickname'],
+      key: 'nickname',
+      render: (text) => text || '-',
+    },
+    {
+      title: '角色',
+      dataIndex: 'role',
+      key: 'role',
+      render: (role: string) => {
+        const name = roleNameMap.get(role) || (role === 'owner' ? '负责人' : role)
+        const color = role === 'owner' ? 'gold' : 'blue'
+        return <Tag color={color}>{name}</Tag>
+      },
+    },
+    {
+      title: '状态',
+      dataIndex: 'status',
+      key: 'status',
+      render: (status: number) =>
+        status === 1 ? (
+          <Badge status="success" text="启用" />
+        ) : (
+          <Badge status="error" text="禁用" />
+        ),
+    },
+    {
+      title: '默认商户',
+      dataIndex: 'is_default',
+      key: 'is_default',
+      render: (val: boolean) =>
+        val ? <Tag color="green">默认</Tag> : <Typography.Text type="secondary">-</Typography.Text>,
+    },
+    {
+      title: '操作',
+      key: 'action',
+      width: 140,
+      render: (_, record) => {
+        const isOwner = record.role === 'owner'
+        return (
+          <Space size="small">
+            <Button
+              type="link"
+              size="small"
+              disabled={isOwner}
+              onClick={() => handleOpenEdit(record)}
+            >
+              编辑
+            </Button>
+            {isOwner ? (
+              <Typography.Text type="secondary" style={{ fontSize: 12 }}>
+                负责人
+              </Typography.Text>
+            ) : (
+              <Popconfirm
+                title="确定从该商户移除此成员？"
+                description="移除后该账号将无法再访问该商户后台"
+                onConfirm={() => handleRemove(record.id)}
+                okText="确认"
+                cancelText="取消"
+              >
+                <Button type="link" size="small" danger>
+                  移除
+                </Button>
+              </Popconfirm>
+            )}
+          </Space>
+        )
+      },
+    },
+  ]
+
+  const titleText = merchantName
+    ? `成员管理 · ${merchantName}${merchantCode ? ` (${merchantCode})` : ''}`
+    : '商户成员管理'
+
+  return (
+    <>
+      <Drawer
+        title={titleText}
+        open={open}
+        onClose={onClose}
+        width={760}
+        destroyOnClose
+        extra={
+          <Space>
+            <Button
+              icon={<ReloadOutlined />}
+              onClick={() => merchantId && void loadData(merchantId)}
+              loading={loading}
+            >
+              刷新
+            </Button>
+            <Button type="primary" icon={<PlusOutlined />} onClick={handleOpenAdd}>
+              添加成员
+            </Button>
+          </Space>
+        }
+      >
+        <Table
+          rowKey="id"
+          columns={columns}
+          dataSource={members}
+          loading={loading}
+          pagination={false}
+          size="middle"
+        />
+      </Drawer>
+
+      {/* 添加成员弹窗 */}
+      <Modal
+        title="添加商户成员"
+        open={addModalOpen}
+        onCancel={() => setAddModalOpen(false)}
+        onOk={handleAddSubmit}
+        confirmLoading={addLoading}
+        destroyOnClose
+      >
+        <Form form={addForm} layout="vertical" style={{ marginTop: 16 }}>
+          <Form.Item label="添加方式">
+            <Radio.Group
+              value={addMode}
+              onChange={(e) => setAddMode(e.target.value)}
+              buttonStyle="solid"
+            >
+              <Radio.Button value="create">新建账号并绑定</Radio.Button>
+              <Radio.Button value="link">关联已有平台账号</Radio.Button>
+            </Radio.Group>
+          </Form.Item>
+
+          {addMode === 'create' ? (
+            <>
+              <Form.Item
+                name="username"
+                label="用户名"
+                rules={[
+                  { required: true, message: '请输入用户名' },
+                  { min: 3, message: '用户名至少 3 个字符' },
+                ]}
+              >
+                <Input placeholder="员工登录用户名" />
+              </Form.Item>
+              <Form.Item
+                name="password"
+                label="初始密码"
+                rules={[
+                  { required: true, message: '请输入密码' },
+                  { min: 6, message: '密码至少 6 个字符' },
+                ]}
+              >
+                <Input.Password placeholder="员工登录密码" />
+              </Form.Item>
+              <Form.Item name="nickname" label="姓名 / 昵称">
+                <Input placeholder="员工真实姓名或备注昵称" />
+              </Form.Item>
+            </>
+          ) : (
+            <Form.Item
+              name="user_id"
+              label="平台账号 UserID"
+              rules={[{ required: true, message: '请输入平台账号 UserID' }]}
+            >
+              <Input placeholder="输入已存在的平台账号 ID" type="number" />
+            </Form.Item>
+          )}
+
+          <Form.Item
+            name="role"
+            label="所属角色"
+            rules={[{ required: true, message: '请选择角色' }]}
+          >
+            <Select placeholder="请选择角色">
+              {roles.map((r) => (
+                <Select.Option key={r.code} value={r.code}>
+                  {r.name} ({r.code})
+                </Select.Option>
+              ))}
+            </Select>
+          </Form.Item>
+
+          <Form.Item name="is_default" label="设为该账号的默认商户" valuePropName="checked">
+            <Switch defaultChecked={addMode === 'create'} />
+          </Form.Item>
+        </Form>
+      </Modal>
+
+      {/* 编辑成员角色与状态弹窗 */}
+      <Modal
+        title={`编辑成员：${editingMember?.user?.username || ''}`}
+        open={editModalOpen}
+        onCancel={() => setEditModalOpen(false)}
+        onOk={handleEditSubmit}
+        confirmLoading={editLoading}
+        destroyOnClose
+      >
+        <Form form={editForm} layout="vertical" style={{ marginTop: 16 }}>
+          <Form.Item
+            name="role"
+            label="角色"
+            rules={[{ required: true, message: '请选择角色' }]}
+          >
+            <Select placeholder="请选择角色">
+              {roles
+                .filter((r) => r.code !== 'owner')
+                .map((r) => (
+                  <Select.Option key={r.code} value={r.code}>
+                    {r.name} ({r.code})
+                  </Select.Option>
+                ))}
+            </Select>
+          </Form.Item>
+
+          <Form.Item name="status" label="账号状态" valuePropName="checked">
+            <Switch checkedChildren="启用" unCheckedChildren="禁用" />
+          </Form.Item>
+
+          <Form.Item name="is_default" label="设为该账号的默认商户" valuePropName="checked">
+            <Switch />
+          </Form.Item>
+        </Form>
+      </Modal>
+    </>
+  )
+}
diff --git a/frontend/src/layouts/MainLayout.tsx b/frontend/src/layouts/MainLayout.tsx
index fd4a8db..f58da0a 100644
--- a/frontend/src/layouts/MainLayout.tsx
+++ b/frontend/src/layouts/MainLayout.tsx
@@ -229,16 +229,12 @@ export default function MainLayout() {
     return localStorage.getItem(SIDEBAR_COLLAPSED_KEY) === 'true'
   })
   const { user, logout, refreshProfile, isAdmin, merchant, merchantPermissions } = useAuth()
-  // 管理员的商户上下文来自 localStorage（即请求头 X-Merchant-ID 的来源），
-  // 之前只会在「平台商户」页点「成员」时被写入，界面上没有任何提示——
-  // 管理员很容易以为自己看的是全平台数据，实际被静默框定在某个商户里。
-  const [activeMerchantId] = useState<string | null>(() => localStorage.getItem('merchant_id'))
-  const merchantContextLabel = merchant?.name || (activeMerchantId ? `商户 #${activeMerchantId}` : '默认商户')
-  const exitMerchantContext = () => {
-    localStorage.removeItem('merchant_id')
-    // 整页刷新：上下文变了，当前页已经加载的数据也必须按新上下文重新取一遍。
-    window.location.reload()
-  }
+  useEffect(() => {
+    // 管理员始终保持平台全局视角，清除任何残留的商户上下文
+    if (isAdmin && localStorage.getItem('merchant_id')) {
+      localStorage.removeItem('merchant_id')
+    }
+  }, [isAdmin])
   const [passwordOpen, setPasswordOpen] = useState(false)
   const [passwordSaving, setPasswordSaving] = useState(false)
   const [passwordForm] = Form.useForm()
@@ -431,22 +427,6 @@ export default function MainLayout() {
           <div className="app-header__right">
             {isAdmin && (
               <Space size="small">
-                <Tooltip title="商户后台页面（发货订单 / 商品 / 钱包 / 成员等）都按这个商户隔离；首页看板与「下游订单」是平台口径，不受它影响">
-                  <Tag
-                    color={activeMerchantId ? 'orange' : 'default'}
-                    bordered={false}
-                    style={{ margin: 0, fontSize: 11.5, fontWeight: 600 }}
-                  >
-                    当前商户：{merchantContextLabel}
-                  </Tag>
-                </Tooltip>
-                {activeMerchantId && (
-                  <Tooltip title="回到你的默认商户上下文（自营商户）">
-                    <Button type="text" size="small" onClick={exitMerchantContext}>
-                      退出商户视角
-                    </Button>
-                  </Tooltip>
-                )}
                 <Tooltip title="开放 API 接口文档">
                   <Button
                     type="text"
diff --git a/frontend/src/pages/PlatformMerchants.tsx b/frontend/src/pages/PlatformMerchants.tsx
index 4488a54..60b2887 100644
--- a/frontend/src/pages/PlatformMerchants.tsx
+++ b/frontend/src/pages/PlatformMerchants.tsx
@@ -1,5 +1,4 @@
 import { useCallback, useEffect, useState } from 'react'
-import { useNavigate } from 'react-router-dom'
 import {
   Button,
   Checkbox,
@@ -23,6 +22,7 @@ import { platformApi } from '../api'
 import type { Merchant, MerchantOwnerAccount, PageResult, ProductCatalogItem, WalletAccount } from '../types'
 import { formatDateTime } from '../utils/time'
 import { PageHeader } from '../components/PageHeader'
+import { MerchantMembersDrawer } from '../components/MerchantMembersDrawer'
 
 const featureOptions = [
   { value: 'products', label: '商品' },
@@ -33,9 +33,10 @@ const featureOptions = [
 ]
 
 export default function PlatformMerchants() {
-	const navigate = useNavigate()
   const [data, setData] = useState<PageResult<Merchant>>({ list: [], total: 0, page: 1, size: 10 })
   const [loading, setLoading] = useState(false)
+  const [membersDrawerOpen, setMembersDrawerOpen] = useState(false)
+  const [membersDrawerMerchant, setMembersDrawerMerchant] = useState<Merchant | null>(null)
   const [createOpen, setCreateOpen] = useState(false)
   const [settingsOpen, setSettingsOpen] = useState(false)
   const [assignOpen, setAssignOpen] = useState(false)
@@ -344,8 +345,8 @@ export default function PlatformMerchants() {
             type="link"
             size="small"
             onClick={() => {
-              localStorage.setItem('merchant_id', String(record.id))
-              navigate('/merchant-members')
+              setMembersDrawerMerchant(record)
+              setMembersDrawerOpen(true)
             }}
           >
             成员
@@ -752,6 +753,17 @@ export default function PlatformMerchants() {
           </Typography.Text>
         </Form>
       </Modal>
+
+      <MerchantMembersDrawer
+        open={membersDrawerOpen}
+        merchantId={membersDrawerMerchant?.id ?? null}
+        merchantName={membersDrawerMerchant?.name}
+        merchantCode={membersDrawerMerchant?.code}
+        onClose={() => {
+          setMembersDrawerOpen(false)
+          setMembersDrawerMerchant(null)
+        }}
+      />
     </div>
   )
 }
diff --git a/frontend/src/pages/PlatformUsers.tsx b/frontend/src/pages/PlatformUsers.tsx
index 785d38e..84efb51 100644
--- a/frontend/src/pages/PlatformUsers.tsx
+++ b/frontend/src/pages/PlatformUsers.tsx
@@ -8,7 +8,7 @@ import type { MerchantMember, MerchantMemberGroup, PageResult, User } from '../t
 import { formatDateTime } from '../utils/time'
 import { useAuth } from '../store/authContext'
 import { roleText } from './merchantCenterUtils'
-import { useNavigate } from 'react-router-dom'
+import { MerchantMembersDrawer } from '../components/MerchantMembersDrawer'
 
 type AdminFormValues = {
   username: string
@@ -19,7 +19,9 @@ type AdminFormValues = {
 
 export default function PlatformUsers() {
   const { user: currentUser } = useAuth()
-  const navigate = useNavigate()
+  const [drawerOpen, setDrawerOpen] = useState(false)
+  const [selectedMerchantId, setSelectedMerchantId] = useState<number | null>(null)
+  const [selectedMerchantName, setSelectedMerchantName] = useState<string>('')
   const [tab, setTab] = useState('admins')
   const [admins, setAdmins] = useState<PageResult<User>>({ list: [], total: 0, page: 1, size: 20 })
   const [merchantAccounts, setMerchantAccounts] = useState<PageResult<MerchantMemberGroup>>({ list: [], total: 0, page: 1, size: 20 })
@@ -169,12 +171,21 @@ export default function PlatformUsers() {
     {
       title: '操作',
       width: 160,
-      render: (_, record) => <Button type="link" size="small" onClick={() => {
-        localStorage.setItem('merchant_id', String(record.merchant_id))
-        navigate('/merchant-members')
-      }}>管理商户成员</Button>,
+      render: (_, record) => (
+        <Button
+          type="link"
+          size="small"
+          onClick={() => {
+            setSelectedMerchantId(record.merchant_id)
+            setSelectedMerchantName(record.merchant?.name || record.merchant?.code || `商户 #${record.merchant_id}`)
+            setDrawerOpen(true)
+          }}
+        >
+          管理商户成员
+        </Button>
+      ),
     },
-  ], [navigate])
+  ], [])
 
   const items = useMemo(() => [
     {
@@ -236,6 +247,17 @@ export default function PlatformUsers() {
           {editingAdmin && <Form.Item label="账号状态" name="status" valuePropName="checked"><Switch checkedChildren="启用" unCheckedChildren="停用" /></Form.Item>}
         </Form>
       </Modal>
+
+      <MerchantMembersDrawer
+        open={drawerOpen}
+        merchantId={selectedMerchantId}
+        merchantName={selectedMerchantName}
+        onClose={() => {
+          setDrawerOpen(false)
+          setSelectedMerchantId(null)
+          setSelectedMerchantName('')
+        }}
+      />
     </div>
   )
 }