diff --git a/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx b/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx
index be57a90a..64d79b99 100644
--- a/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx
+++ b/apps/frontend/src/pages/admin/panels/WorkOrdersPanel.tsx
@@ -137,6 +137,8 @@ export default function WorkOrdersPanel() {
   const [keyword, setKeyword] = useState('')
   const [keywordInput, setKeywordInput] = useState('')
   const [workerId, setWorkerId] = useState<number | undefined>()
+  const [filterWorkerKeyword, setFilterWorkerKeyword] = useState('')
+  const [assignWorkerKeyword, setAssignWorkerKeyword] = useState('')
   const [page, setPage] = useState(1)
   const [pageSize, setPageSize] = useState(ADMIN_DEFAULT_PAGE_SIZE)
   const [selectedAcceptanceOrderIds, setSelectedAcceptanceOrderIds] = useState<number[]>([])
@@ -228,8 +230,13 @@ export default function WorkOrdersPanel() {
     queryFn: () => fetchAdminWorkCategories(),
   })
   const filterWorkersQuery = useQuery({
-    queryKey: ['admin-worker-platform-workers', 'order-filter'],
-    queryFn: () => fetchAdminWorkerUsers({ page: 1, pageSize: 200 }),
+    queryKey: ['admin-worker-platform-workers', 'order-filter', filterWorkerKeyword],
+    queryFn: () =>
+      fetchAdminWorkerUsers({
+        keyword: filterWorkerKeyword.trim(),
+        page: 1,
+        pageSize: 30,
+      }),
   })
   const sharingQuery = useQuery({
     queryKey: ['admin-worker-platform-order-sharing', sharingOrder?.workOrderId],
@@ -237,8 +244,14 @@ export default function WorkOrdersPanel() {
     enabled: Boolean(sharingOrder),
   })
   const assignWorkersQuery = useQuery({
-    queryKey: ['admin-worker-platform-workers', 'active', 1, 200],
-    queryFn: () => fetchAdminWorkerUsers({ status: 'active', page: 1, pageSize: 200 }),
+    queryKey: ['admin-worker-platform-workers', 'assign', assignWorkerKeyword],
+    queryFn: () =>
+      fetchAdminWorkerUsers({
+        status: 'active',
+        keyword: assignWorkerKeyword.trim(),
+        page: 1,
+        pageSize: 30,
+      }),
     enabled: Boolean(assignOrder),
   })
 
@@ -249,6 +262,7 @@ export default function WorkOrdersPanel() {
   function openAssignModal(row: WorkOrder) {
     setAssignOrder(row)
     setAssignWorkerId(undefined)
+    setAssignWorkerKeyword('')
   }
 
   function openCancelModal(row: WorkOrder) {
@@ -988,11 +1002,12 @@ export default function WorkOrdersPanel() {
             <Select
               allowClear
               showSearch
-              optionFilterProp="label"
+              filterOption={false}
               value={workerId}
               placeholder="全部接单人员"
               style={{ width: 180 }}
               loading={filterWorkersQuery.isLoading}
+              onSearch={setFilterWorkerKeyword}
               options={(filterWorkersQuery.data?.data.items || []).map((worker) => ({
                 value: worker.workerId,
                 label:
@@ -1002,6 +1017,7 @@ export default function WorkOrdersPanel() {
               }))}
               onChange={(nextWorkerId) => {
                 setWorkerId(nextWorkerId)
+                if (!nextWorkerId) setFilterWorkerKeyword('')
                 setPage(1)
               }}
             />
@@ -1609,9 +1625,13 @@ export default function WorkOrdersPanel() {
             placeholder="选择要指派的打手"
             loading={assignWorkersQuery.isLoading}
             showSearch
-            optionFilterProp="label"
+            filterOption={false}
             value={assignWorkerId}
-            onChange={setAssignWorkerId}
+            onSearch={setAssignWorkerKeyword}
+            onChange={(nextWorkerId) => {
+              setAssignWorkerId(nextWorkerId)
+              if (!nextWorkerId) setAssignWorkerKeyword('')
+            }}
             options={(assignWorkersQuery.data?.data.items || []).map((worker) => ({
               value: worker.workerId,
               label: `${worker.displayName || worker.username}（${worker.username}）${