diff --git a/ui/src/components/COMPONENT_README.md b/ui/src/components/COMPONENT_README.md
index a99af55c9d1..603326e16d4 100644
--- a/ui/src/components/COMPONENT_README.md
+++ b/ui/src/components/COMPONENT_README.md
@@ -359,6 +359,12 @@ Dialog、Drawer、Popover、嵌套区域等其他大、小表格均禁止开启
 多选“全部”只操作可用选项，保留已选禁用项；无草稿选择时仍通过“重置”清空。
 过长的扁平选项文案省略，悬停查看完整文案。
 
+多选模式可通过 `filterable` 开启选项搜索，默认关闭，其他模式不受影响。搜索按 `label` 在前端
+进行不区分大小写的包含匹配，忽略关键词首尾空格，不请求接口、不提交筛选条件。
+搜索框固定在滚动区上方，每次打开清空关键词并回填已生效的勾选；无匹配时展示空状态。
+搜索开启后，“全部”仅操作当前匹配的可用选项，保留隐藏的勾选项和已选禁用项；
+确定提交完整草稿，重置清空所有勾选，页面的后台查询参数保持原有约定。
+
 级联默认配置为 `{ multiple: true, checkStrictly: true, emitPath: false, showPrefix: false }`，与 v2 文档标签筛选一致：
 父子节点独立选择，隐藏节点前的选择框。静态多选时，组件保留面板的原始勾选，
 对外将选中的父组递归展开为可用叶子节点并去重；页面直接使用回写值，不再自行转换父组。
diff --git a/ui/src/components/global/mk-table/mk-table-filter/TableFilterMultiple.vue b/ui/src/components/global/mk-table/mk-table-filter/TableFilterMultiple.vue
index af91af114eb..5006859ba5e 100644
--- a/ui/src/components/global/mk-table/mk-table-filter/TableFilterMultiple.vue
+++ b/ui/src/components/global/mk-table/mk-table-filter/TableFilterMultiple.vue
@@ -9,8 +9,9 @@ const props = withDefaults(
     modelValue: CheckboxValueType[]
     options: TableFilterOption[]
     width?: string | number
+    filterable?: boolean
   }>(),
-  { width: 192 },
+  { width: 192, filterable: false },
 )
 const emit = defineEmits<{ select: [value: CheckboxValueType[]]; open: [] }>()
 defineSlots<{ default(): unknown }>()
@@ -18,18 +19,27 @@ defineSlots<{ default(): unknown }>()
 // 打开时回填草稿，确认或重置后提交。
 const visible = ref(false)
 const pendingValues = ref<CheckboxValueType[]>([])
-const allOptionValues = computed(() => props.options.filter((option) => !option.disabled).map(({ value }) => value))
+const searchKeyword = ref('')
+const filteredOptions = computed(() => {
+  const keyword = searchKeyword.value.trim().toLowerCase()
+  return props.filterable && keyword ? props.options.filter((option) => option.label.toLowerCase().includes(keyword)) : props.options
+})
+const allOptionValues = computed(() => filteredOptions.value.filter((option) => !option.disabled).map(({ value }) => value))
 const allSelected = computed(() => allOptionValues.value.length > 0 && allOptionValues.value.every((value) => pendingValues.value.includes(value)))
 const selectionIndeterminate = computed(() => allOptionValues.value.some((value) => pendingValues.value.includes(value)) && !allSelected.value)
 
 function handleOpen() {
+  searchKeyword.value = ''
   pendingValues.value = [...props.modelValue]
   emit('open')
 }
 
 function handleSelectAllChange(checked: CheckboxValueType) {
-  const disabledValues = pendingValues.value.filter((value) => props.options.some((option) => option.value === value && option.disabled))
-  pendingValues.value = checked ? [...disabledValues, ...allOptionValues.value] : disabledValues
+  // 搜索时保留隐藏的勾选项；未开启搜索时沿用原有全选规则。
+  const retainedValues = pendingValues.value.filter((value) =>
+    props.filterable ? !allOptionValues.value.includes(value) : props.options.some((option) => option.value === value && option.disabled),
+  )
+  pendingValues.value = checked ? [...new Set([...retainedValues, ...allOptionValues.value])] : retainedValues
 }
 
 function handleReset() {
@@ -47,16 +57,31 @@ function handleConfirm() {
 <template>
   <el-popover v-model:visible="visible" placement="bottom-start" trigger="click" :width="width" @before-enter="handleOpen">
     <template #reference><slot /></template>
+    <div v-if="filterable" class="px-3 pt-3">
+      <MkSearchInput v-model="searchKeyword" />
+    </div>
     <el-scrollbar max-height="280px">
       <div class="flex-column gap-2 p-3 pb-0">
-        <el-checkbox :indeterminate="selectionIndeterminate" :model-value="allSelected" class="mr-0!" @change="handleSelectAllChange">
+        <el-checkbox
+          :indeterminate="selectionIndeterminate"
+          :model-value="allSelected"
+          :disabled="filterable && !allOptionValues.length"
+          class="mr-0!"
+          @change="handleSelectAllChange"
+        >
           全部
         </el-checkbox>
         <el-checkbox-group v-model="pendingValues" class="mk-checkbox-group-vertical gap-2">
-          <el-checkbox v-for="option in options" :key="`${typeof option.value}:${option.value}`" :value="option.value" :disabled="option.disabled">
+          <el-checkbox
+            v-for="option in filteredOptions"
+            :key="`${typeof option.value}:${option.value}`"
+            :value="option.value"
+            :disabled="option.disabled"
+          >
             <span class="block min-w-0 truncate" :title="option.label">{{ option.label }}</span>
           </el-checkbox>
         </el-checkbox-group>
+        <MkEmpty v-if="filterable && !filteredOptions.length" type="search" description="暂无匹配结果" :image-size="64" />
       </div>
     </el-scrollbar>
 
diff --git a/ui/src/components/global/mk-table/mk-table-filter/index.vue b/ui/src/components/global/mk-table/mk-table-filter/index.vue
index b5d2789d92a..e67ad07fb79 100644
--- a/ui/src/components/global/mk-table/mk-table-filter/index.vue
+++ b/ui/src/components/global/mk-table/mk-table-filter/index.vue
@@ -18,8 +18,9 @@ const props = withDefaults(
     resetValue?: T
     cascaderProps?: CascaderProps
     width?: string | number
+    filterable?: boolean
   }>(),
-  { mode: 'multiple', options: () => [] },
+  { mode: 'multiple', options: () => [], filterable: false },
 )
 defineSlots<{ default(props: { value: T }): unknown }>()
 const emit = defineEmits<{ change: [value: T]; open: [] }>()
@@ -67,6 +68,7 @@ const filterProps = computed(() => {
     modelValue: selectedValue.value as TableFilterOption['value'][],
     options: props.options as TableFilterOption[],
     width: props.width,
+    filterable: props.filterable,
   }
 })
 
diff --git a/ui/src/views/system/operate-logs/index.vue b/ui/src/views/system/operate-logs/index.vue
index b080429aa59..736d1000316 100644
--- a/ui/src/views/system/operate-logs/index.vue
+++ b/ui/src/views/system/operate-logs/index.vue
@@ -191,6 +191,7 @@ onMounted(() => {
               mode="multiple"
               v-model="selectedWorkspaceIds"
               label="工作空间"
+              filterable
               :options="workspaceOptions"
               @change="handleWorkspaceChange"
             />
diff --git a/ui/src/views/system/resource-management/application/index.vue b/ui/src/views/system/resource-management/application/index.vue
index ad1263f2d8a..117d5d8322f 100644
--- a/ui/src/views/system/resource-management/application/index.vue
+++ b/ui/src/views/system/resource-management/application/index.vue
@@ -156,7 +156,14 @@ onMounted(() => {
         </el-table-column>
         <el-table-column v-if="auth.isEE" prop="workspace_name" min-width="160" show-overflow-tooltip>
           <template #header>
-            <MkTableFilter mode="multiple" v-model="selectedWorkspaceIds" label="工作空间" :options="workspaceOptions" @change="handleFilterChange" />
+            <MkTableFilter
+              mode="multiple"
+              v-model="selectedWorkspaceIds"
+              label="工作空间"
+              filterable
+              :options="workspaceOptions"
+              @change="handleFilterChange"
+            />
           </template>
         </el-table-column>
         <el-table-column prop="nick_name" label="创建者" min-width="120" show-overflow-tooltip />
diff --git a/ui/src/views/system/resource-management/knowledge/index.vue b/ui/src/views/system/resource-management/knowledge/index.vue
index aa769932ccb..c6b40c53de2 100644
--- a/ui/src/views/system/resource-management/knowledge/index.vue
+++ b/ui/src/views/system/resource-management/knowledge/index.vue
@@ -162,7 +162,14 @@ onMounted(() => {
         </el-table-column>
         <el-table-column v-if="auth.isEE" prop="workspace_name" min-width="160" show-overflow-tooltip>
           <template #header>
-            <MkTableFilter mode="multiple" v-model="selectedWorkspaceIds" label="工作空间" :options="workspaceOptions" @change="handleFilterChange" />
+            <MkTableFilter
+              mode="multiple"
+              v-model="selectedWorkspaceIds"
+              label="工作空间"
+              filterable
+              :options="workspaceOptions"
+              @change="handleFilterChange"
+            />
           </template>
         </el-table-column>
         <el-table-column prop="nick_name" label="创建者" min-width="120" show-overflow-tooltip />
diff --git a/ui/src/views/system/resource-management/model/index.vue b/ui/src/views/system/resource-management/model/index.vue
index e905f41f968..fe1974c7f9f 100644
--- a/ui/src/views/system/resource-management/model/index.vue
+++ b/ui/src/views/system/resource-management/model/index.vue
@@ -160,7 +160,14 @@ onMounted(() => {
         <el-table-column prop="model_name" label="基础模型" min-width="180" show-overflow-tooltip />
         <el-table-column v-if="auth.isEE" prop="workspace_name" min-width="160" show-overflow-tooltip>
           <template #header>
-            <MkTableFilter mode="multiple" v-model="selectedWorkspaceIds" label="工作空间" :options="workspaceOptions" @change="handleFilterChange" />
+            <MkTableFilter
+              mode="multiple"
+              v-model="selectedWorkspaceIds"
+              label="工作空间"
+              filterable
+              :options="workspaceOptions"
+              @change="handleFilterChange"
+            />
           </template>
         </el-table-column>
         <el-table-column prop="nick_name" label="创建者" min-width="120" show-overflow-tooltip />
diff --git a/ui/src/views/system/resource-management/tool/index.vue b/ui/src/views/system/resource-management/tool/index.vue
index 145fd5777cb..11669ad4134 100644
--- a/ui/src/views/system/resource-management/tool/index.vue
+++ b/ui/src/views/system/resource-management/tool/index.vue
@@ -189,7 +189,14 @@ onMounted(() => {
         </el-table-column>
         <el-table-column v-if="auth.isEE" prop="workspace_name" min-width="160" show-overflow-tooltip>
           <template #header>
-            <MkTableFilter mode="multiple" v-model="selectedWorkspaceIds" label="工作空间" :options="workspaceOptions" @change="handleFilterChange" />
+            <MkTableFilter
+              mode="multiple"
+              v-model="selectedWorkspaceIds"
+              label="工作空间"
+              filterable
+              :options="workspaceOptions"
+              @change="handleFilterChange"
+            />
           </template>
         </el-table-column>
         <el-table-column prop="nick_name" label="创建者" min-width="120" show-overflow-tooltip />