diff --git a/apps/applications/api/application.py b/apps/applications/api/application.py
index cb51ff023..84426b6b2 100644
--- a/apps/applications/api/application.py
+++ b/apps/applications/api/application.py
@@ -2,18 +2,49 @@
 #
 
 from orgs.mixins.api import OrgBulkModelViewSet
+from rest_framework import generics
 
-from ..hands import IsOrgAdminOrAppUser
+from ..hands import IsOrgAdminOrAppUser, IsOrgAdmin
 from .. import models, serializers
+from ..models import Application
+from assets.models import SystemUser
+from assets.serializers import SystemUserListSerializer
+from perms.models import ApplicationPermission
+from ..const import ApplicationCategoryChoices
 
 
-__all__ = ['ApplicationViewSet']
+__all__ = ['ApplicationViewSet', 'ApplicationUserListApi']
 
 
 class ApplicationViewSet(OrgBulkModelViewSet):
-    model = models.Application
+    model = Application
     filterset_fields = ('name', 'type', 'category')
     search_fields = filterset_fields
     permission_classes = (IsOrgAdminOrAppUser,)
     serializer_class = serializers.ApplicationSerializer
 
+
+class ApplicationUserListApi(generics.ListAPIView):
+    permission_classes = (IsOrgAdmin, )
+    filterset_fields = ('name', 'username')
+    search_fields = filterset_fields
+    serializer_class = SystemUserListSerializer
+
+    def get_application(self):
+        application = None
+        app_id = self.request.query_params.get('application_id')
+        if app_id:
+            application = Application.objects.get(id=app_id)
+        return application
+
+    def get_queryset(self):
+        queryset = SystemUser.objects.none()
+        application = self.get_application()
+        if not application:
+            return queryset
+        system_user_ids = ApplicationPermission.objects.filter(applications=application)\
+            .values_list('system_users', flat=True)
+        if not system_user_ids:
+            return queryset
+        queryset = SystemUser.objects.filter(id__in=system_user_ids)
+        return queryset
diff --git a/apps/applications/urls/api_urls.py b/apps/applications/urls/api_urls.py
index ab463a401..9ca50d32c 100644
--- a/apps/applications/urls/api_urls.py
+++ b/apps/applications/urls/api_urls.py
@@ -14,6 +14,7 @@ router.register(r'applications', api.ApplicationViewSet, 'application')
 
 urlpatterns = [
     path('remote-apps/<uuid:pk>/connection-info/', api.RemoteAppConnectionInfoApi.as_view(), name='remote-app-connection-info'),
+    path('application-users/', api.ApplicationUserListApi.as_view(), name='application-user')
 ]
 
 
diff --git a/apps/assets/backends/base.py b/apps/assets/backends/base.py
index 3b27a57af..17115afaa 100644
--- a/apps/assets/backends/base.py
+++ b/apps/assets/backends/base.py
@@ -31,11 +31,11 @@ class BaseBackend:
     def qs_to_values(qs):
         values = qs.values(
             'hostname', 'ip', "asset_id",
-            'username', 'password', 'private_key', 'public_key',
+            'name', 'username', 'password', 'private_key', 'public_key',
             'score', 'version',
             "asset_username", "union_id",
             'date_created', 'date_updated',
-            'org_id', 'backend',
+            'org_id', 'backend', 'backend_display'
         )
         return values
 
diff --git a/apps/assets/backends/db.py b/apps/assets/backends/db.py
index 386f0ee29..aa3e1ef78 100644
--- a/apps/assets/backends/db.py
+++ b/apps/assets/backends/db.py
@@ -106,6 +106,7 @@ class DBBackend(BaseBackend):
 class SystemUserBackend(DBBackend):
     model = SystemUser.assets.through
     backend = 'system_user'
+    backend_display = _('System user')
     prefer = backend
     base_score = 0
     union_id_length = 2
@@ -138,6 +139,7 @@ class SystemUserBackend(DBBackend):
         kwargs = dict(
             hostname=F("asset__hostname"),
             ip=F("asset__ip"),
+            name=F("systemuser__name"),
             username=F("systemuser__username"),
             password=F("systemuser__password"),
             private_key=F("systemuser__private_key"),
@@ -152,7 +154,8 @@ class SystemUserBackend(DBBackend):
             union_id=Concat(F("systemuser_id"), Value("_"), F("asset_id"),
                             output_field=CharField()),
             org_id=F("asset__org_id"),
-            backend=Value(self.backend, CharField())
+            backend=Value(self.backend, CharField()),
+            backend_display=Value(self.backend_display, CharField()),
         )
         return kwargs
 
@@ -174,12 +177,17 @@ class SystemUserBackend(DBBackend):
 
 class DynamicSystemUserBackend(SystemUserBackend):
     backend = 'system_user_dynamic'
+    backend_display = _('System user(Dynamic)')
     prefer = 'system_user'
     union_id_length = 3
 
     def get_annotate(self):
         kwargs = super().get_annotate()
         kwargs.update(dict(
+            name=Concat(
+                F("systemuser__users__name"), Value('('), F("systemuser__name"), Value(')'),
+                output_field=CharField()
+            ),
             username=F("systemuser__users__username"),
             asset_username=Concat(
                 F("asset__id"), Value("_"),
@@ -221,6 +229,7 @@ class DynamicSystemUserBackend(SystemUserBackend):
 class AdminUserBackend(DBBackend):
     model = Asset
     backend = 'admin_user'
+    backend_display = _('Admin user')
     prefer = backend
     base_score = 200
 
@@ -246,6 +255,7 @@ class AdminUserBackend(DBBackend):
     def all(self):
         qs = self.model.objects.all().annotate(
             asset_id=F("id"),
+            name=F("admin_user__name"),
             username=F("admin_user__username"),
             password=F("admin_user__password"),
             private_key=F("admin_user__private_key"),
@@ -256,6 +266,7 @@ class AdminUserBackend(DBBackend):
             asset_username=Concat(F("id"), Value("_"), F("admin_user__username"), output_field=CharField()),
             union_id=Concat(F("admin_user_id"), Value("_"), F("id"), output_field=CharField()),
             backend=Value(self.backend, CharField()),
+            backend_display=Value(self.backend_display, CharField()),
         )
         qs = self.qs_to_values(qs)
         return qs
@@ -264,6 +275,7 @@ class AdminUserBackend(DBBackend):
 class AuthbookBackend(DBBackend):
     model = AuthBook
     backend = 'db'
+    backend_display = _('Database')
     prefer = backend
     base_score = 400
 
@@ -313,6 +325,7 @@ class AuthbookBackend(DBBackend):
             asset_username=Concat(F("asset__id"), Value("_"), F("username"), output_field=CharField()),
             union_id=Concat(F("id"), Value("_"), F("asset_id"), output_field=CharField()),
             backend=Value(self.backend, CharField()),
+            backend_display=Value(self.backend_display, CharField()),
         )
         qs = self.qs_to_values(qs)
         return qs
diff --git a/apps/assets/models/asset_user.py b/apps/assets/models/asset_user.py
index 118d4549b..ac9112427 100644
--- a/apps/assets/models/asset_user.py
+++ b/apps/assets/models/asset_user.py
@@ -7,6 +7,7 @@ class AssetUser(AuthBook):
     hostname = ""
     ip = ""
     backend = ""
+    backend_display = ""
     union_id = ""
     asset_username = ""
 
diff --git a/apps/assets/serializers/asset_user.py b/apps/assets/serializers/asset_user.py
index 19cb2adc7..6552281c6 100644
--- a/apps/assets/serializers/asset_user.py
+++ b/apps/assets/serializers/asset_user.py
@@ -47,16 +47,17 @@ class AssetUserReadSerializer(AssetUserWriteSerializer):
     ip = serializers.CharField(read_only=True, label=_("IP"))
     asset = serializers.CharField(source='asset_id', label=_('Asset'))
     backend = serializers.CharField(read_only=True, label=_("Backend"))
+    backend_display = serializers.CharField(read_only=True, label=_("Source"))
 
     class Meta(AssetUserWriteSerializer.Meta):
         read_only_fields = (
             'date_created', 'date_updated',
             'created_by', 'version',
         )
-        fields_mini = ['id', 'username']
+        fields_mini = ['id', 'name', 'username']
         fields_write_only = ['password', 'private_key', "public_key"]
         fields_small = fields_mini + fields_write_only + [
-            'backend', 'version',
+            'backend', 'backend_display', 'version',
             'date_created', "date_updated",
             'comment'
         ]
diff --git a/apps/locale/zh/LC_MESSAGES/django.mo b/apps/locale/zh/LC_MESSAGES/django.mo
index 53adc1239..d5940b932 100644
Binary files a/apps/locale/zh/LC_MESSAGES/django.mo and b/apps/locale/zh/LC_MESSAGES/django.mo differ
diff --git a/apps/locale/zh/LC_MESSAGES/django.po b/apps/locale/zh/LC_MESSAGES/django.po
index 8f5f38858..af2cbcc87 100644
--- a/apps/locale/zh/LC_MESSAGES/django.po
+++ b/apps/locale/zh/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: JumpServer 0.3.3\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-05-22 16:56+0800\n"
+"POT-Creation-Date: 2021-06-04 11:11+0800\n"
 "PO-Revision-Date: 2021-05-20 10:54+0800\n"
 "Last-Translator: ibuler <ibuler@qq.com>\n"
 "Language-Team: JumpServer team<ibuler@qq.com>\n"
@@ -121,7 +121,7 @@ msgstr "系统用户"
 #: applications/serializers/attrs/application_category/remote_app.py:33
 #: assets/models/asset.py:355 assets/models/authbook.py:26
 #: assets/models/gathered_user.py:14 assets/serializers/admin_user.py:34
-#: assets/serializers/asset_user.py:48 assets/serializers/asset_user.py:89
+#: assets/serializers/asset_user.py:48 assets/serializers/asset_user.py:90
 #: assets/serializers/system_user.py:201 audits/models.py:38
 #: perms/models/asset_permission.py:99 templates/index.html:82
 #: terminal/backends/command/models.py:19
@@ -184,7 +184,7 @@ msgstr "格式为逗号分隔的字符串, * 表示匹配所有. "
 #: users/templates/users/_select_user_modal.html:14
 #: xpack/plugins/change_auth_plan/models.py:47
 #: xpack/plugins/change_auth_plan/models.py:278
-#: xpack/plugins/cloud/serializers.py:51
+#: xpack/plugins/cloud/serializers.py:65
 msgid "Username"
 msgstr "用户名"
 
@@ -233,6 +233,7 @@ msgstr "所有复核人都不属于组织 `{}`"
 #: applications/const.py:9
 #: applications/serializers/attrs/application_category/db.py:14
 #: applications/serializers/attrs/application_type/mysql_workbench.py:26
+#: assets/backends/db.py:278
 msgid "Database"
 msgstr "数据库"
 
@@ -285,7 +286,7 @@ msgid "Cluster"
 msgstr "集群"
 
 #: applications/serializers/attrs/application_category/db.py:11
-#: ops/models/adhoc.py:146 xpack/plugins/cloud/serializers.py:49
+#: ops/models/adhoc.py:146 xpack/plugins/cloud/serializers.py:63
 msgid "Host"
 msgstr "主机"
 
@@ -295,7 +296,7 @@ msgstr "主机"
 #: applications/serializers/attrs/application_type/oracle.py:11
 #: applications/serializers/attrs/application_type/pgsql.py:11
 #: assets/models/asset.py:188 assets/models/domain.py:53
-#: xpack/plugins/cloud/serializers.py:50
+#: xpack/plugins/cloud/serializers.py:64
 msgid "Port"
 msgstr "端口"
 
@@ -315,7 +316,7 @@ msgstr "目标URL"
 #: applications/serializers/attrs/application_type/custom.py:25
 #: applications/serializers/attrs/application_type/mysql_workbench.py:34
 #: applications/serializers/attrs/application_type/vmware_client.py:30
-#: assets/models/base.py:252 assets/serializers/asset_user.py:76
+#: assets/models/base.py:252 assets/serializers/asset_user.py:77
 #: audits/signals_handler.py:58 authentication/forms.py:22
 #: authentication/templates/authentication/login.html:164
 #: settings/serializers/settings.py:93 users/forms/profile.py:21
@@ -325,7 +326,7 @@ msgstr "目标URL"
 #: xpack/plugins/change_auth_plan/models.py:68
 #: xpack/plugins/change_auth_plan/models.py:190
 #: xpack/plugins/change_auth_plan/models.py:285
-#: xpack/plugins/cloud/serializers.py:53
+#: xpack/plugins/cloud/serializers.py:67
 msgid "Password"
 msgstr "密码"
 
@@ -357,11 +358,35 @@ msgstr "不能删除根节点 ({})"
 msgid "Deletion failed and the node contains assets"
 msgstr "删除失败，节点包含资产"
 
-#: assets/backends/db.py:244
+#: assets/backends/db.py:109 assets/models/user.py:228 audits/models.py:39
+#: perms/models/application_permission.py:31
+#: perms/models/asset_permission.py:101 templates/_nav.html:45
+#: terminal/backends/command/models.py:20
+#: terminal/backends/command/serializers.py:14 terminal/models/session.py:42
+#: users/templates/users/_granted_assets.html:27
+#: users/templates/users/user_asset_permission.html:42
+#: users/templates/users/user_asset_permission.html:76
+#: users/templates/users/user_asset_permission.html:159
+#: users/templates/users/user_database_app_permission.html:40
+#: users/templates/users/user_database_app_permission.html:67
+msgid "System user"
+msgstr "系统用户"
+
+#: assets/backends/db.py:180
+msgid "System user(Dynamic)"
+msgstr "系统用户(动态)"
+
+#: assets/backends/db.py:232 assets/models/asset.py:196
+#: assets/models/cluster.py:19 assets/models/user.py:66 templates/_nav.html:44
+#: xpack/plugins/cloud/models.py:92 xpack/plugins/cloud/serializers.py:160
+msgid "Admin user"
+msgstr "管理用户"
+
+#: assets/backends/db.py:253
 msgid "Could not remove asset admin user"
 msgstr "不能移除资产的管理用户账号"
 
-#: assets/backends/db.py:305
+#: assets/backends/db.py:317
 msgid "Latest version could not be delete"
 msgstr "最新版本的不能被删除"
 
@@ -405,12 +430,6 @@ msgstr "节点"
 msgid "Is active"
 msgstr "激活"
 
-#: assets/models/asset.py:196 assets/models/cluster.py:19
-#: assets/models/user.py:66 templates/_nav.html:44
-#: xpack/plugins/cloud/models.py:92 xpack/plugins/cloud/serializers.py:146
-msgid "Admin user"
-msgstr "管理用户"
-
 #: assets/models/asset.py:199
 msgid "Public IP"
 msgstr "公网IP"
@@ -678,7 +697,7 @@ msgstr "ssh私钥"
 #: users/templates/users/user_asset_permission.html:41
 #: users/templates/users/user_asset_permission.html:73
 #: users/templates/users/user_asset_permission.html:158
-#: xpack/plugins/cloud/models.py:89 xpack/plugins/cloud/serializers.py:147
+#: xpack/plugins/cloud/models.py:89 xpack/plugins/cloud/serializers.py:161
 msgid "Node"
 msgstr "节点"
 
@@ -740,20 +759,6 @@ msgstr "家目录"
 msgid "System groups"
 msgstr "用户组"
 
-#: assets/models/user.py:228 audits/models.py:39
-#: perms/models/application_permission.py:31
-#: perms/models/asset_permission.py:101 templates/_nav.html:45
-#: terminal/backends/command/models.py:20
-#: terminal/backends/command/serializers.py:14 terminal/models/session.py:42
-#: users/templates/users/_granted_assets.html:27
-#: users/templates/users/user_asset_permission.html:42
-#: users/templates/users/user_asset_permission.html:76
-#: users/templates/users/user_asset_permission.html:159
-#: users/templates/users/user_database_app_permission.html:40
-#: users/templates/users/user_database_app_permission.html:67
-msgid "System user"
-msgstr "系统用户"
-
 #: assets/models/utils.py:35
 #, python-format
 msgid "%(value)s is not an even number"
@@ -813,12 +818,16 @@ msgstr "ID"
 msgid "Backend"
 msgstr "后端"
 
-#: assets/serializers/asset_user.py:80 users/forms/profile.py:160
+#: assets/serializers/asset_user.py:50
+msgid "Source"
+msgstr "来源"
+
+#: assets/serializers/asset_user.py:81 users/forms/profile.py:160
 #: users/models/user.py:580 users/templates/users/user_password_update.html:48
 msgid "Public key"
 msgstr "SSH公钥"
 
-#: assets/serializers/asset_user.py:84 users/models/user.py:577
+#: assets/serializers/asset_user.py:85 users/models/user.py:577
 msgid "Private key"
 msgstr "ssh私钥"
 
@@ -3890,7 +3899,7 @@ msgid "Wechat"
 msgstr "微信"
 
 #: users/models/user.py:596
-msgid "Source"
+msgid "User source"
 msgstr "用户来源"
 
 #: users/models/user.py:600
@@ -4003,7 +4012,7 @@ msgid "Security token validation"
 msgstr "安全令牌验证"
 
 #: users/templates/users/_base_otp.html:14 xpack/plugins/cloud/models.py:78
-#: xpack/plugins/cloud/serializers.py:145
+#: xpack/plugins/cloud/serializers.py:159
 msgid "Account"
 msgstr "账户"
 
@@ -4744,7 +4753,7 @@ msgstr "云服务商"
 msgid "Cloud account"
 msgstr "云账号"
 
-#: xpack/plugins/cloud/models.py:81 xpack/plugins/cloud/serializers.py:126
+#: xpack/plugins/cloud/models.py:81 xpack/plugins/cloud/serializers.py:140
 msgid "Regions"
 msgstr "地域"
 
@@ -4752,7 +4761,7 @@ msgstr "地域"
 msgid "Hostname strategy"
 msgstr "主机名策略"
 
-#: xpack/plugins/cloud/models.py:95 xpack/plugins/cloud/serializers.py:149
+#: xpack/plugins/cloud/models.py:95 xpack/plugins/cloud/serializers.py:163
 msgid "Always update"
 msgstr "总是更新"
 
@@ -4944,20 +4953,24 @@ msgstr ""
 msgid "Subscription ID"
 msgstr ""
 
-#: xpack/plugins/cloud/serializers.py:124
+#: xpack/plugins/cloud/serializers.py:49
+msgid "This field is required"
+msgstr "这个字段是必填项"
+
+#: xpack/plugins/cloud/serializers.py:138
 msgid "History count"
 msgstr "执行次数"
 
-#: xpack/plugins/cloud/serializers.py:125
+#: xpack/plugins/cloud/serializers.py:139
 msgid "Instance count"
 msgstr "实例个数"
 
-#: xpack/plugins/cloud/serializers.py:148
+#: xpack/plugins/cloud/serializers.py:162
 #: xpack/plugins/gathered_user/serializers.py:20
 msgid "Periodic display"
 msgstr "定时执行"
 
-#: xpack/plugins/cloud/utils.py:64
+#: xpack/plugins/cloud/utils.py:65
 msgid "Account unavailable"
 msgstr "账户无效"
 
@@ -5044,33 +5057,3 @@ msgstr "旗舰版"
 #: xpack/plugins/license/models.py:77
 msgid "Community edition"
 msgstr "社区版"
-
-#~ msgid "This field is required"
-#~ msgstr "这个字段是必填项"
-
-#~ msgid "{} is required"
-#~ msgstr "{} 字段是必填项"
-
-#~ msgid "AppSecret is required"
-#~ msgstr "AppSecret 是必须的"
-
-#~ msgid "Corporation ID(corpid)"
-#~ msgstr "企业 ID(CorpId)"
-
-#~ msgid "Agent ID(agentid)"
-#~ msgstr "应用 ID(AgentId)"
-
-#~ msgid "Secret(secret)"
-#~ msgstr "秘钥(secret)"
-
-#~ msgid "AgentId"
-#~ msgstr "应用 ID(AgentId)"
-
-#~ msgid "AppKey"
-#~ msgstr "应用 Key(AppKey)"
-
-#~ msgid "AppSecret"
-#~ msgstr "应用密文(AppSecret)"
-
-#~ msgid "No"
-#~ msgstr "无"
diff --git a/apps/users/models/user.py b/apps/users/models/user.py
index f362e60ac..40bb165e9 100644
--- a/apps/users/models/user.py
+++ b/apps/users/models/user.py
@@ -593,7 +593,7 @@ class User(AuthMixin, TokenMixin, RoleMixin, MFAMixin, AbstractUser):
     source = models.CharField(
         max_length=30, default=Source.local,
         choices=Source.choices,
-        verbose_name=_('Source')
+        verbose_name=_('User source')
     )
     date_password_last_updated = models.DateTimeField(
         auto_now_add=True, blank=True, null=True,