diff --git a/frontend/src/locales/en.ts b/frontend/src/locales/en.ts
index 06e1896..8395855 100644
--- a/frontend/src/locales/en.ts
+++ b/frontend/src/locales/en.ts
@@ -22,6 +22,9 @@ export default {
   online: "Online",
   version: "Version",
   commaSeparated: "(comma separated)",
+  error: {
+    dplData: "Duplicate Data",
+  },
   pages: {
     login: "Login",
     home: "Home",
diff --git a/frontend/src/locales/fa.ts b/frontend/src/locales/fa.ts
index 16cc376..02c52ca 100644
--- a/frontend/src/locales/fa.ts
+++ b/frontend/src/locales/fa.ts
@@ -22,6 +22,9 @@ export default {
   online: "آنلاین",
   version: "نسخه",
   commaSeparated: "(جداشده با کاما)",
+  error: {
+    dplData: "داده تکراری",
+  },
   pages: {
     login: "ورود",
     home: "خانه",
diff --git a/frontend/src/locales/vi.ts b/frontend/src/locales/vi.ts
index 553e1f7..487265d 100644
--- a/frontend/src/locales/vi.ts
+++ b/frontend/src/locales/vi.ts
@@ -22,6 +22,9 @@ export default {
   online: "Trực tuyến",
   version: "Phiên bản",
   commaSeparated: "(được phân tách bằng dấu phẩy)",
+  error: {
+    dplData: "Dữ liệu trùng lặp",
+  },
   pages: {
     login: "Đăng nhập",
     home: "Trang chủ",
diff --git a/frontend/src/locales/zhcn.ts b/frontend/src/locales/zhcn.ts
index e64c1ac..8bbf303 100644
--- a/frontend/src/locales/zhcn.ts
+++ b/frontend/src/locales/zhcn.ts
@@ -22,6 +22,9 @@ export default {
   online: "在线",
   version: "版本",
   commaSeparated: "（逗号分隔）",
+  error: {
+    dplData: "重复数据",
+  },
   pages: {
     login: "登录",
     home: "主页",
diff --git a/frontend/src/locales/zhtw.ts b/frontend/src/locales/zhtw.ts
index a6724bd..ff0728d 100644
--- a/frontend/src/locales/zhtw.ts
+++ b/frontend/src/locales/zhtw.ts
@@ -23,6 +23,9 @@ export default {
   online: "在線",
   version: "版本",
   commaSeparated: "（逗號分隔）",
+  error: {
+    dplData: "重複數據",
+  },
   pages: {
     login: "登錄",
     home: "主頁",
diff --git a/frontend/src/views/Clients.vue b/frontend/src/views/Clients.vue
index 3909e77..90a7779 100644
--- a/frontend/src/views/Clients.vue
+++ b/frontend/src/views/Clients.vue
@@ -132,6 +132,8 @@ import { Config, V2rayApiStats } from '@/types/config'
 import { InTypes, Inbound,InboundWithUser, ShadowTLS, VLESS } from '@/types/inbounds'
 import { Link, LinkUtil } from '@/plugins/link'
 import { HumanReadable } from '@/plugins/utils'
+import Message from '@/store/modules/message'
+import { i18n } from '@/locales'
 
 const clients = computed((): any[] => {
   return Data().clients
@@ -177,6 +179,11 @@ const closeModal = () => {
   modal.value.visible = false
 }
 const saveModal = (data:any, stats:boolean) => {
+  if (clients.value.findIndex(c => c.name == data.name) != modal.value.index) {
+    const sb = Message()
+    sb.showMessage(i18n.global.t('error.dplData') + ': ' + i18n.global.t('client.name') ,'error', 5000)
+    return
+  }
   const inboundTags: string[] = data.inbounds.split(',')?? []
   let oldName:string = ""
   if(modal.value.index == -1) {
diff --git a/frontend/src/views/Inbounds.vue b/frontend/src/views/Inbounds.vue
index 3fe32d7..bee6546 100644
--- a/frontend/src/views/Inbounds.vue
+++ b/frontend/src/views/Inbounds.vue
@@ -108,6 +108,8 @@ import { computed, ref } from 'vue'
 import { InTypes, Inbound, InboundWithUser, ShadowTLS, VLESS } from '@/types/inbounds'
 import { Client } from '@/types/clients'
 import { Link, LinkUtil } from '@/plugins/link'
+import Message from '@/store/modules/message'
+import { i18n } from '@/locales'
 
 const appConfig = computed((): Config => {
   return <Config> Data().config
@@ -156,6 +158,11 @@ const closeModal = () => {
   modal.value.visible = false
 }
 const saveModal = (data:Inbound, stats: boolean) => {
+  if (inbounds.value.findIndex(c => c.tag == data.tag) != modal.value.id) {
+    const sb = Message()
+    sb.showMessage(i18n.global.t('error.dplData') + ': ' + i18n.global.t('objects.tag') ,'error', 5000)
+    return
+  }
   // New or Edit
   if (modal.value.id == -1) {
     inbounds.value.push(data)
diff --git a/frontend/src/views/Outbounds.vue b/frontend/src/views/Outbounds.vue
index 5918def..d9210cd 100644
--- a/frontend/src/views/Outbounds.vue
+++ b/frontend/src/views/Outbounds.vue
@@ -96,6 +96,8 @@ import Stats from '@/layouts/modals/Stats.vue'
 import { Config, V2rayApiStats } from '@/types/config';
 import { Outbound } from '@/types/outbounds';
 import { computed, ref } from 'vue'
+import Message from '@/store/modules/message';
+import { i18n } from '@/locales';
 
 const appConfig = computed((): Config => {
   return <Config> Data().config
@@ -137,6 +139,11 @@ const closeModal = () => {
   modal.value.visible = false
 }
 const saveModal = (data:Outbound, stats: boolean) => {
+  if (outbounds.value.findIndex(c => c.tag == data.tag) != modal.value.id) {
+    const sb = Message()
+    sb.showMessage(i18n.global.t('error.dplData') + ': ' + i18n.global.t('objects.tag') ,'error', 5000)
+    return
+  }
   // New or Edit
   if (modal.value.id == -1) {
     outbounds.value.push(data)