diff --git a/src/api/org.ts b/src/api/org.ts
index 8d53cc2..aac393c 100644
--- a/src/api/org.ts
+++ b/src/api/org.ts
@@ -37,3 +37,8 @@ export function updateOrg(
 export function deleteOrg(id: string): Promise<unknown> {
   return http.delete(`/orgs/${id}`)
 }
+
+/** 批量删除组织。 */
+export function batchDeleteOrgs(ids: string[]): Promise<{ total: number; success: number; failed: string[] }> {
+  return http.post('/orgs/batch-delete', { ids })
+}
diff --git a/src/api/resource.ts b/src/api/resource.ts
index e9b59ff..5929505 100644
--- a/src/api/resource.ts
+++ b/src/api/resource.ts
@@ -49,3 +49,8 @@ export function updateResource(id: string, data: ResourceUpsertData): Promise<Re
 export function deleteResource(id: string): Promise<unknown> {
   return http.delete(`/resources/${id}`)
 }
+
+/** 批量删除资源。 */
+export function batchDeleteResources(ids: string[]): Promise<{ total: number; success: number; failed: string[] }> {
+  return http.post('/resources/batch-delete', { ids })
+}
diff --git a/src/api/role.ts b/src/api/role.ts
index c2197d5..495b5d8 100644
--- a/src/api/role.ts
+++ b/src/api/role.ts
@@ -60,3 +60,13 @@ export function listAssignedResources(roleCode: string, signal?: AbortSignal): P
 export function assignResources(roleCode: string, resourceCodes: string[]): Promise<unknown> {
   return http.put(`/roles/${roleCode}/resources`, { resourceCodes })
 }
+
+/** 角色已分配的数据权限部门 code 列表（data_scope=custom）。 */
+export function listAssignedOrgs(roleCode: string, signal?: AbortSignal): Promise<string[]> {
+  return http.get<string[]>(`/roles/${roleCode}/orgs`, { signal })
+}
+
+/** 分配数据权限部门。 */
+export function assignOrgs(roleCode: string, orgCodes: string[]): Promise<unknown> {
+  return http.put(`/roles/${roleCode}/orgs`, { orgCodes })
+}
diff --git a/src/api/user.ts b/src/api/user.ts
index 7129a25..84a3091 100644
--- a/src/api/user.ts
+++ b/src/api/user.ts
@@ -67,6 +67,11 @@ export function deleteUser(id: string): Promise<unknown> {
   return http.delete(`/users/${id}`)
 }
 
+/** 批量删除用户。 */
+export function batchDeleteUsers(ids: string[]): Promise<{ total: number; success: number; failed: string[] }> {
+  return http.post('/users/batch-delete', { ids })
+}
+
 /** 重置密码。 */
 export function resetPassword(id: string, password: string): Promise<unknown> {
   return http.patch(`/users/${id}/password`, { password })
diff --git a/src/pages/system/org/index.vue b/src/pages/system/org/index.vue
index ba82699..6b4b6bd 100644
--- a/src/pages/system/org/index.vue
+++ b/src/pages/system/org/index.vue
@@ -46,7 +46,7 @@ import TyForm from '@/components/ty-form.vue'
 import { showDialog } from '@/utils/dialog'
 import { useRequest } from '@/composables/useRequest'
 import { buildTree, collectDescendants, filterTree, type TreeNode } from '@/utils/tree'
-import { createOrg, deleteOrg, listOrgs, updateOrg, type Org } from '@/api/org'
+import { batchDeleteOrgs, createOrg, deleteOrg, listOrgs, updateOrg, type Org } from '@/api/org'
 
 type OrgNode = TreeNode<Org>
 
@@ -238,10 +238,14 @@ async function batchDelete(rows: Record<string, any>[]): Promise<void> {
     codes.add(String(r.code))
     for (const c of collectDescendants(orgs.value, String(r.code))) codes.add(c)
   }
-  const targets = orgs.value.filter((o) => codes.has(o.code))
-  for (const t of targets) await deleteOrg(t.id)
+  const ids = orgs.value.filter((o) => codes.has(o.code)).map((o) => o.id)
+  const result = await batchDeleteOrgs(ids)
+  if (result.failed.length > 0) {
+    ElMessage.warning(`删除完成：成功 ${result.success} 个，失败 ${result.failed.length} 个`)
+  } else {
+    ElMessage.success('删除成功')
+  }
   selectedRows.value = []
-  ElMessage.success('删除成功')
   await refreshOrgs()
 }
 </script>
diff --git a/src/pages/system/resource/index.vue b/src/pages/system/resource/index.vue
index 56639e5..a0c2a3e 100644
--- a/src/pages/system/resource/index.vue
+++ b/src/pages/system/resource/index.vue
@@ -46,7 +46,7 @@ import TyForm from '@/components/ty-form.vue'
 import { showDialog } from '@/utils/dialog'
 import { useRequest } from '@/composables/useRequest'
 import { buildTree, collectDescendants, filterTree, type TreeNode } from '@/utils/tree'
-import { createResource, deleteResource, listResources, updateResource, type Resource, type ResourceUpsertData } from '@/api/resource'
+import { batchDeleteResources, createResource, deleteResource, listResources, updateResource, type Resource, type ResourceUpsertData } from '@/api/resource'
 
 type ResourceNode = TreeNode<Resource>
 
@@ -288,10 +288,14 @@ async function batchDelete(rows: Record<string, any>[]): Promise<void> {
     codes.add(String(r.code))
     for (const c of collectDescendants(resources.value, String(r.code))) codes.add(c)
   }
-  const targets = resources.value.filter((o) => codes.has(o.code))
-  for (const t of targets) await deleteResource(t.id)
+  const ids = resources.value.filter((o) => codes.has(o.code)).map((o) => o.id)
+  const result = await batchDeleteResources(ids)
+  if (result.failed.length > 0) {
+    ElMessage.warning(`删除完成：成功 ${result.success} 个，失败 ${result.failed.length} 个`)
+  } else {
+    ElMessage.success('删除成功')
+  }
   selectedRows.value = []
-  ElMessage.success('删除成功')
   await refreshResources()
 }
 </script>
diff --git a/src/pages/system/role/assign-orgs-form.vue b/src/pages/system/role/assign-orgs-form.vue
new file mode 100644
index 0000000..910840a
--- /dev/null
+++ b/src/pages/system/role/assign-orgs-form.vue
@@ -0,0 +1,57 @@
+<template>
+  <el-tree
+    v-if="ready"
+    ref="treeRef"
+    class="assign-tree"
+    :data="tree"
+    node-key="code"
+    show-checkbox
+    :props="{ label: 'name', children: 'children' }"
+    default-expand-all
+  />
+</template>
+
+<script setup lang="ts">
+import { computed, nextTick, ref, watch } from 'vue'
+import { useRequest } from '@/composables/useRequest'
+import { listOrgs } from '@/api/org'
+import { listAssignedOrgs } from '@/api/role'
+import { buildTree, type TreeNode } from '@/utils/tree'
+import type { Org } from '@/api/org'
+
+defineOptions({ name: 'AssignOrgsForm' })
+
+const props = defineProps<{ roleCode: string }>()
+
+interface TreeApi {
+  getCheckedKeys: (leafOnly?: boolean) => (string | number)[]
+  setCheckedKeys: (keys: (string | number)[], leafOnly?: boolean) => void
+}
+const treeRef = ref<TreeApi>()
+
+const { data: orgList } = useRequest((signal: AbortSignal) => listOrgs(signal))
+const { data: assigned } = useRequest((signal: AbortSignal) => listAssignedOrgs(props.roleCode, signal))
+
+const tree = computed(() => buildTree(orgList.value ?? []) as TreeNode<Org>[])
+const ready = computed(() => orgList.value !== undefined && assigned.value !== undefined)
+
+watch(ready, async (r) => {
+  if (r) {
+    await nextTick()
+    treeRef.value?.setCheckedKeys(assigned.value ?? [], true)
+  }
+})
+
+function submit(): { orgCodes: string[] } {
+  const checked = treeRef.value?.getCheckedKeys(true) ?? []
+  return { orgCodes: [...new Set(checked.map(String))] }
+}
+
+defineExpose({ submit })
+</script>
+
+<style scoped lang="scss">
+.assign-tree {
+  @apply max-h-[420px] overflow-y-auto;
+}
+</style>
diff --git a/src/pages/system/role/index.vue b/src/pages/system/role/index.vue
index 109c957..c11316f 100644
--- a/src/pages/system/role/index.vue
+++ b/src/pages/system/role/index.vue
@@ -19,8 +19,9 @@
 import { ElMessage } from 'element-plus'
 import type { CrudAction, JsonSchema, PageQuery, TableColumn } from '@/types/crud'
 import { showDialog } from '@/utils/dialog'
-import { assignResources, createRole, deleteRole, listRoles, updateRole, type RoleListQuery } from '@/api/role'
+import { assignOrgs, assignResources, createRole, deleteRole, listRoles, updateRole, type RoleListQuery } from '@/api/role'
 import AssignResourcesForm from './assign-resources-form.vue'
+import AssignOrgsForm from './assign-orgs-form.vue'
 
 const columns: TableColumn[] = [
   { prop: 'name', label: '角色名称', minWidth: 140 },
@@ -72,6 +73,7 @@ const actions: CrudAction[] = [
   'edit',
   'delete',
   { label: '分配权限', type: 'warning', onClick: (row) => assignAction(row) },
+  { label: '分配部门', type: 'primary', show: (row) => row.dataScope === 'custom', onClick: (row) => assignOrgsAction(row) },
 ]
 
 function toListQuery(query: PageQuery): RoleListQuery {
@@ -103,4 +105,16 @@ async function assignAction(row: Record<string, any>): Promise<void> {
   await assignResources(String(row.code), result.resourceCodes)
   ElMessage.success('权限已保存')
 }
+
+async function assignOrgsAction(row: Record<string, any>): Promise<void> {
+  const result = await showDialog({
+    component: AssignOrgsForm,
+    props: { roleCode: String(row.code) },
+    title: `分配数据权限部门（${row.name}）`,
+    width: '520px',
+  })
+  if (result == null) return
+  await assignOrgs(String(row.code), result.orgCodes)
+  ElMessage.success('部门已保存')
+}
 </script>
diff --git a/src/pages/system/user/index.vue b/src/pages/system/user/index.vue
index c6c318f..c67b3ad 100644
--- a/src/pages/system/user/index.vue
+++ b/src/pages/system/user/index.vue
@@ -39,6 +39,7 @@ import { showDialog } from '@/utils/dialog'
 import { useRequest } from '@/composables/useRequest'
 import {
   assignUserRoles,
+  batchDeleteUsers,
   createUser,
   deleteUser,
   listUsers,
@@ -167,10 +168,12 @@ const crudRef = ref()
 
 async function batchDelete(rows: Record<string, any>[]): Promise<void> {
   await ElMessageBox.confirm(`确认删除选中的 ${rows.length} 个用户？`, '提示', { type: 'warning' })
-  for (const r of rows) {
-    await deleteUser(String(r.id))
+  const result = await batchDeleteUsers(rows.map((r) => String(r.id)))
+  if (result.failed.length > 0) {
+    ElMessage.warning(`删除完成：成功 ${result.success} 个，失败 ${result.failed.length} 个`)
+  } else {
+    ElMessage.success('删除成功')
   }
-  ElMessage.success('删除成功')
   crudRef.value?.reload()
 }
 
diff --git a/typed-router.d.ts b/typed-router.d.ts
index 470712c..ec91c61 100644
--- a/typed-router.d.ts
+++ b/typed-router.d.ts
@@ -121,6 +121,13 @@ declare module 'vue-router/auto-routes' {
       Record<never, never>,
       | never
     >,
+    '/system/role/assign-orgs-form': RouteRecordInfo<
+      '/system/role/assign-orgs-form',
+      '/system/role/assign-orgs-form',
+      Record<never, never>,
+      Record<never, never>,
+      | never
+    >,
     '/system/role/assign-resources-form': RouteRecordInfo<
       '/system/role/assign-resources-form',
       '/system/role/assign-resources-form',
@@ -253,6 +260,12 @@ declare module 'vue-router/auto-routes' {
       views:
         | never
     }
+    'src/pages/system/role/assign-orgs-form.vue': {
+      routes:
+        | '/system/role/assign-orgs-form'
+      views:
+        | never
+    }
     'src/pages/system/role/assign-resources-form.vue': {
       routes:
         | '/system/role/assign-resources-form'