diff --git a/src/bk-user/bkuser/apis/open_v2/serializers/profilers.py b/src/bk-user/bkuser/apis/open_v2/serializers/profilers.py
index 82141f18a..13b7c6f19 100644
--- a/src/bk-user/bkuser/apis/open_v2/serializers/profilers.py
+++ b/src/bk-user/bkuser/apis/open_v2/serializers/profilers.py
@@ -25,7 +25,7 @@ def validated_fields(self, fields: List[str]) -> List[str]:
         #  [基本] code, qq
         #  [登录&密码相关] password_valid_days, password_update_time, last_login_time, account_expiration_date,
         #  [时间相关] create_time, update_time
-        # 总返回固定值字段：logo, position, type, role
+        # 总返回固定值字段：logo, type, role
         allowed_fields = {
             # 基础字段
             "id",
@@ -97,3 +97,7 @@ class DepartmentProfileListInputSLZ(serializers.Serializer):
     recursive = serializers.BooleanField(help_text="是否递归", required=False, default=False)
     include_disabled = serializers.BooleanField(help_text="是否包含软删除部门", required=False, default=False)
     no_page = serializers.BooleanField(help_text="全量返回", required=False, default=False)
+
+
+class ProfileLanguageUpdateInputSLZ(serializers.Serializer):
+    language = serializers.ChoiceField(help_text="需设置的语言", choices=["zh-cn", "en"])
diff --git a/src/bk-user/bkuser/apis/open_v2/urls.py b/src/bk-user/bkuser/apis/open_v2/urls.py
index 5e14c2078..c72bd2ac1 100644
--- a/src/bk-user/bkuser/apis/open_v2/urls.py
+++ b/src/bk-user/bkuser/apis/open_v2/urls.py
@@ -53,4 +53,10 @@
         views.DepartmentProfileListApi.as_view(),
         name="open_v2.list_department_profiles",
     ),
+    # 更新用户语言
+    path(
+        "profiles/<str:username>/languages/",
+        views.ProfileLanguageUpdateApi.as_view(),
+        name="open_v2.update_profile_language",
+    ),
 ]
diff --git a/src/bk-user/bkuser/apis/open_v2/views/__init__.py b/src/bk-user/bkuser/apis/open_v2/views/__init__.py
index f09882d46..18f1f39eb 100644
--- a/src/bk-user/bkuser/apis/open_v2/views/__init__.py
+++ b/src/bk-user/bkuser/apis/open_v2/views/__init__.py
@@ -12,7 +12,7 @@
 from .categories import CategoriesListApi
 from .departments import DepartmentChildrenListApi, DepartmentListApi, DepartmentRetrieveApi, ProfileDepartmentListApi
 from .edges import DepartmentProfileRelationListApi, ProfileLeaderRelationListApi
-from .profilers import DepartmentProfileListApi, ProfileListApi, ProfileRetrieveApi
+from .profilers import DepartmentProfileListApi, ProfileLanguageUpdateApi, ProfileListApi, ProfileRetrieveApi
 
 __all__ = [
     # 目录类
@@ -29,4 +29,5 @@
     "ProfileListApi",
     "ProfileRetrieveApi",
     "DepartmentProfileListApi",
+    "ProfileLanguageUpdateApi",
 ]
diff --git a/src/bk-user/bkuser/apis/open_v2/views/profilers.py b/src/bk-user/bkuser/apis/open_v2/views/profilers.py
index b736385a2..e44cbd5f4 100644
--- a/src/bk-user/bkuser/apis/open_v2/views/profilers.py
+++ b/src/bk-user/bkuser/apis/open_v2/views/profilers.py
@@ -24,6 +24,7 @@
 from bkuser.apis.open_v2.pagination import LegacyOpenApiPagination
 from bkuser.apis.open_v2.serializers.profilers import (
     DepartmentProfileListInputSLZ,
+    ProfileLanguageUpdateInputSLZ,
     ProfileListInputSLZ,
     ProfileRetrieveInputSLZ,
 )
@@ -35,6 +36,7 @@
 from bkuser.apps.tenant.models import DataSourceDepartment, TenantDepartment, TenantUser
 from bkuser.biz.tenant import TenantUserHandler
 from bkuser.common.error_codes import error_codes
+from bkuser.common.views import ExcludePatchAPIViewMixin
 from bkuser.utils.tree import Tree
 
 
@@ -85,6 +87,7 @@ def build_user_infos(self, tenant_users: QuerySet[TenantUser], fields: List[str]
                 "language": tenant_user.language,
                 "wx_userid": tenant_user.wx_userid,
                 "domain": tenant_user.data_source.domain,
+                # TODO: 协同需要调整
                 "category_id": tenant_user.data_source_id,
                 # TODO 1. 支持软删除后需要特殊处理 2. 支持状态时需要特殊处理
                 "status": "",
@@ -280,7 +283,7 @@ def _filter_queryset(self, params: Dict[str, Any]) -> QuerySet[TenantUser]:
     @staticmethod
     def _convert_lookup_field(lookup_field: str) -> str:
         if lookup_field == "id":
-            return f"data_source_user__{lookup_field}"
+            return "data_source_user__id"
         if lookup_field == "username":
             return "id"
         if lookup_field == "display_name":
@@ -323,7 +326,7 @@ def _convert_optional_inherited_lookup_field(lookup_field: str, value: str, is_e
         if lookup_field == "telephone":
             lookup_field = "phone"
 
-            # 精确查询
+        # 精确查询
         if is_exact:
             return Q(
                 # 继承
@@ -361,7 +364,7 @@ def get(self, request, *args, **kwargs):
             # TODO 目前 ID 指的是数据源用户 ID，未来支持协同之后，需要重新考虑
             filters = {"data_source_user__id": lookup_value}
 
-        # TODO (su) 支持软删除后，需要根据 include_disabled 参数判断是返回被删除的部门还是 Raise 404
+        # TODO (su) 支持软删除后，需要根据 include_disabled 参数判断是返回被删除的用户还是 Raise 404
         tenant_user = TenantUser.objects.select_related("data_source_user").filter(**filters).first()
         if not tenant_user:
             raise Http404(f"user {params['lookup_field']}:{kwargs['lookup_value']} not found")
@@ -408,7 +411,7 @@ def _get_departments(self, tenant_user: TenantUser) -> List[Dict[str, Any]]:
 
         # 查询对应的租户部门
         departments = TenantDepartment.objects.filter(
-            tenant=tenant_user.tenant, data_source_department_id__in=department_ids
+            tenant_id=tenant_user.tenant_id, data_source_department_id__in=department_ids
         ).select_related("data_source_department")
 
         # 部门的 full_name
@@ -458,6 +461,7 @@ def _build_user_info(self, tenant_user: TenantUser, fields: List[str]) -> Dict[s
             "wx_userid": tenant_user.wx_userid,
             "wx_openid": tenant_user.wx_openid,
             "domain": tenant_user.data_source.domain,
+            # TODO: 协同需要调整
             "category_id": tenant_user.data_source_id,
             # TODO 1. 支持软删除后需要特殊处理 2. 支持状态时需要特殊处理
             "status": "",
@@ -527,12 +531,14 @@ def _filter_queryset(tenant_dept: TenantDepartment, recursive: bool) -> QuerySet
         dept_ids = [tenant_dept.data_source_department_id]
         if recursive:
             # 根据部门关系，查询部门子孙（包括自身）
-            rel = DataSourceDepartmentRelation.objects.filter(department=tenant_dept.data_source_department).first()
+            rel = DataSourceDepartmentRelation.objects.filter(
+                department_id=tenant_dept.data_source_department_id
+            ).first()
             if rel:
                 dept_ids = rel.get_descendants(include_self=True).values_list("department_id", flat=True)
 
         # 查询部门下的用户 ID 列表
-        user_ids = DataSourceDepartmentUserRelation.objects.filter(department__in=dept_ids).values_list(
+        user_ids = DataSourceDepartmentUserRelation.objects.filter(department_id__in=dept_ids).values_list(
             "user_id", flat=True
         )
 
@@ -540,3 +546,21 @@ def _filter_queryset(tenant_dept: TenantDepartment, recursive: bool) -> QuerySet
         return TenantUser.objects.filter(
             tenant_id=tenant_dept.tenant_id, data_source_user_id__in=user_ids
         ).select_related("data_source_user")
+
+
+class ProfileLanguageUpdateApi(ExcludePatchAPIViewMixin, LegacyOpenApiCommonMixin, generics.UpdateAPIView):
+    """更新用户国际化语言"""
+
+    def put(self, request, *args, **kwargs):
+        slz = ProfileLanguageUpdateInputSLZ(data=request.data)
+        slz.is_valid(raise_exception=True)
+
+        # TODO (su) 支持软删除后，需要根据 include_disabled 参数判断是返回被删除的用户还是 Raise 404
+        tenant_user = TenantUser.objects.filter(id=kwargs["username"]).first()
+        if not tenant_user:
+            raise Http404(f"user username:{kwargs['username']} not found")
+
+        tenant_user.language = slz.validated_data["language"]
+        tenant_user.save(update_fields=["language"])
+
+        return Response()
diff --git a/src/bk-user/bkuser/urls.py b/src/bk-user/bkuser/urls.py
index a375e219c..84d50f4a9 100644
--- a/src/bk-user/bkuser/urls.py
+++ b/src/bk-user/bkuser/urls.py
@@ -24,7 +24,9 @@
     # 提供给登录服务使用的内部 API
     path("api/v1/login/", include("bkuser.apis.login.urls")),
     # 兼容旧版本（v2）用户管理 OpenAPI
-    path("api/v2/open/", include("bkuser.apis.open_v2.urls")),
+    # Q: 这里使用 api/v2 而非 api/v2/open,
+    # A: 为了保证 ESB 调用的兼容，只需修改 ESB 配置 bk_user host，不需要依赖 ESB 的版本发布
+    path("api/v2/", include("bkuser.apis.open_v2.urls")),
     # 用于监控相关的，比如ping/healthz/sentry/metrics/otel等等
     path("", include("bkuser.monitoring.urls")),
 ]