diff --git a/apps/backend/src/services/worker-platform/admin-service.ts b/apps/backend/src/services/worker-platform/admin-service.ts
index 0dacfebb..3c119796 100644
--- a/apps/backend/src/services/worker-platform/admin-service.ts
+++ b/apps/backend/src/services/worker-platform/admin-service.ts
@@ -754,6 +754,16 @@ export async function submitAdminWorkOrderMaterial(
       errorCode: 'work_order_material_status_invalid',
     })
   }
+  if (
+    workOrder.status === WORK_ORDER_STATUS.IN_PROGRESS &&
+    workOrder.sharing_enabled === true &&
+    payload.rewardAmount !== undefined
+  ) {
+    throw createHttpError('拼单订单的份额奖励已锁定，不能在更新资料时修改价格', {
+      statusCode: 409,
+      errorCode: 'work_order_material_reward_sharing_invalid',
+    })
+  }
 
   const fields = resolveRequirementFields(workOrder)
   const submittedFields = normalizeSubmittedFields(payload.fields || payload.material || payload)
@@ -762,6 +772,10 @@ export async function submitAdminWorkOrderMaterial(
   )
   const now = nowIso()
   const screenshots = normalizeUploadedFiles(payload.screenshots || payload.files)
+  const rewardAmount =
+    workOrder.status === WORK_ORDER_STATUS.IN_PROGRESS && payload.rewardAmount !== undefined
+      ? normalizeAmountFen(payload.rewardAmount, workOrder.reward_amount)
+      : workOrder.reward_amount
   const material = {
     ...safeParseJson(workOrder.material_json),
     collect: {
@@ -781,6 +795,7 @@ export async function submitAdminWorkOrderMaterial(
   const updated = await updateWorkOrder(workOrder.id, {
     status: nextStatus,
     material_json: material,
+    reward_amount: rewardAmount,
     updated_at: now,
   })
   await createWorkOrderEvent({
@@ -793,7 +808,7 @@ export async function submitAdminWorkOrderMaterial(
         : 'material_completed',
     fromStatus: workOrder.status,
     toStatus: nextStatus,
-    payloadJson: JSON.stringify({ fields: submittedFields, complete }),
+    payloadJson: JSON.stringify({ fields: submittedFields, complete, rewardAmount }),
     now,
   })
   return { order: mapWorkOrderAdmin(updated || workOrder), complete }
diff --git a/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx b/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx
index 6d45344b..03e0e5c2 100644
--- a/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx
+++ b/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx
@@ -126,6 +126,11 @@ const FILTERABLE_WORK_ORDER_STATUSES = [
   'cancelled',
 ] as const
 
+type MaterialFormValues = {
+  fields?: Record<string, string>
+  rewardAmount?: number
+}
+
 export default function WorkOrdersPanel() {
   const { message, modal } = App.useApp()
   const navigate = useNavigate()
@@ -151,7 +156,7 @@ export default function WorkOrdersPanel() {
   const [deductOrder, setDeductOrder] = useState<WorkOrder | null>(null)
   const [problemForm] = Form.useForm()
   const [resolutionForm] = Form.useForm()
-  const [materialForm] = Form.useForm()
+  const [materialForm] = Form.useForm<MaterialFormValues>()
   const [deductForm] = Form.useForm<{ amount?: number; note?: string }>()
   const [editForm] = Form.useForm<{
     productName?: string
@@ -378,7 +383,7 @@ export default function WorkOrdersPanel() {
     resolutionForm.resetFields()
   }
 
-  async function submitMaterial(values: { fields?: Record<string, string> }) {
+  async function submitMaterial(values: MaterialFormValues) {
     if (!materialOrder) return
     const succeeded = await runAction(
       () =>
@@ -386,6 +391,9 @@ export default function WorkOrdersPanel() {
           materialOrder.workOrderId,
           values.fields || {},
           materialScreenshots,
+          materialOrder.status === 'in_progress' && !materialOrder.sharing?.enabled
+            ? Number(values.rewardAmount || 0)
+            : undefined,
         ),
       materialOrder.status === 'in_progress' ? '订单资料已更新' : '订单资料已保存',
     )
@@ -410,7 +418,10 @@ export default function WorkOrdersPanel() {
 
   function openMaterialModal(row: WorkOrder) {
     setMaterialOrder(row)
-    materialForm.setFieldsValue({ fields: getMaterialFields(row) })
+    materialForm.setFieldsValue({
+      fields: getMaterialFields(row),
+      rewardAmount: Math.round(Number(row.rewardAmount || 0)) / 100,
+    })
     setMaterialScreenshots(getMaterialScreenshots(row))
   }
 
@@ -1320,6 +1331,15 @@ export default function WorkOrdersPanel() {
         destroyOnHidden
       >
         <Form form={materialForm} layout="vertical" onFinish={submitMaterial}>
+          {materialOrder?.status === 'in_progress' && !materialOrder.sharing?.enabled ? (
+            <Form.Item
+              label="发单价格"
+              name="rewardAmount"
+              rules={[{ required: true, message: '请输入发单价格' }]}
+            >
+              <InputNumber min={0} precision={2} addonAfter="元" style={{ width: '100%' }} />
+            </Form.Item>
+          ) : null}
           <Form.Item label="粘贴自动识别">
             <Space.Compact style={{ width: '100%' }}>
               <Input.TextArea
diff --git a/apps/frontend/src/services/admin/worker-platform.ts b/apps/frontend/src/services/admin/worker-platform.ts
index fa52afdc..4a4621a0 100644
--- a/apps/frontend/src/services/admin/worker-platform.ts
+++ b/apps/frontend/src/services/admin/worker-platform.ts
@@ -231,10 +231,11 @@ export function submitAdminWorkOrderMaterial(
   workOrderId: number,
   fields: Record<string, string>,
   screenshots?: UploadedFile[],
+  rewardAmount?: number,
 ) {
   return apiPost<{ order: WorkOrder; complete: boolean }>(
     `/api/v1/admin/worker-platform/orders/${workOrderId}/material`,
-    { fields, screenshots },
+    { fields, screenshots, rewardAmount },
   )
 }