diff --git a/apps/application/chat_pipeline/step/search_dataset_step/i_search_dataset_step.py b/apps/application/chat_pipeline/step/search_dataset_step/i_search_dataset_step.py
index 11431cafc..3731a6aef 100644
--- a/apps/application/chat_pipeline/step/search_dataset_step/i_search_dataset_step.py
+++ b/apps/application/chat_pipeline/step/search_dataset_step/i_search_dataset_step.py
@@ -20,7 +20,7 @@ from dataset.models import Paragraph
 class ISearchDatasetStep(IBaseChatPipelineStep):
     class InstanceSerializer(serializers.Serializer):
         # 原始问题文本
-        problem_text = serializers.CharField(required=True, error_messages=ErrMessage.char("文档id"))
+        problem_text = serializers.CharField(required=True, error_messages=ErrMessage.char("问题"))
         # 系统补全问题文本
         padding_problem_text = serializers.CharField(required=False, error_messages=ErrMessage.char("系统补全问题文本"))
         # 需要查询的数据集id列表
diff --git a/ui/src/components/ai-chat/index.vue b/ui/src/components/ai-chat/index.vue
index 10af298d3..123c7dce1 100644
--- a/ui/src/components/ai-chat/index.vue
+++ b/ui/src/components/ai-chat/index.vue
@@ -2,7 +2,7 @@
   <div ref="aiChatRef" class="ai-chat" :class="log ? 'chart-log' : ''">
     <el-scrollbar ref="scrollDiv" @scroll="handleScrollTop">
       <div ref="dialogScrollbar" class="ai-chat__content p-24">
-        <div class="item-content mb-16">
+        <div class="item-content mb-16" v-if="!props.available || props.data?.prologue">
           <div class="avatar">
             <AppAvatar class="avatar-gradient">
               <img src="@/assets/icon_robot.svg" style="width: 75%" alt="" />
@@ -189,6 +189,11 @@ const props = defineProps({
   record: {
     type: Array<chatType[]>,
     default: () => []
+  },
+  // 应用是否可用
+  available: {
+    type: Boolean,
+    default: true
   }
 })
 const { application } = useStore()
@@ -208,7 +213,9 @@ const isDisabledChart = computed(
 )
 const isMdArray = (val: string) => val.match(/^-\s.*/m)
 const prologueList = computed(() => {
-  const temp = props.data?.prologue
+  const temp = props.available
+    ? props.data?.prologue
+    : '抱歉，当前正在维护，无法提供服务，请稍后再试！'
   let arr: any = []
   const lines = temp?.split('\n')
   lines?.forEach((str: string, index: number) => {
@@ -281,34 +288,36 @@ const startChat = (chat: chatType) => {
 /**
  * 对话
  */
-function getChartOpenId() {
+function getChartOpenId(chat?: any) {
   loading.value = true
   const obj = props.data
   if (props.appId) {
-    applicationApi
+    return applicationApi
       .getChatOpen(props.appId)
       .then((res) => {
         chartOpenId.value = res.data
-        chatMessage()
+        chatMessage(chat)
       })
       .catch((res) => {
-        console.log(res)
         if (res.response.status === 403) {
           application.asyncAppAuthentication(accessToken).then(() => {
             getChartOpenId()
           })
+        } else {
+          loading.value = false
+          return Promise.reject(res)
         }
-        loading.value = false
       })
   } else {
-    applicationApi
+    return applicationApi
       .postChatOpen(obj)
       .then((res) => {
         chartOpenId.value = res.data
-        chatMessage()
+        chatMessage(chat)
       })
-      .catch(() => {
+      .catch((res) => {
         loading.value = false
+        return Promise.reject(res)
       })
   }
 }
@@ -389,39 +398,51 @@ const getWrite = (chat: any, reader: any, stream: boolean) => {
   }
   return stream ? write_stream : write_json
 }
-
+const errorWrite = (chat: any) => {
+  ChatManagement.addChatRecord(chat, 50, loading)
+  ChatManagement.write(chat.id)
+  ChatManagement.append(chat.id, '抱歉，当前正在维护，无法提供服务，请稍后再试！')
+  ChatManagement.close(chat.id)
+}
 function chatMessage(chat?: any) {
   loading.value = true
+  if (!chat) {
+    chat = reactive({
+      id: randomId(),
+      problem_text: inputValue.value,
+      answer_text: '',
+      buffer: [],
+      write_ed: false,
+      is_stop: false,
+      record_id: '',
+      vote_status: '-1'
+    })
+    chatList.value.push(chat)
+    inputValue.value = ''
+    nextTick(() => {
+      // 将滚动条滚动到最下面
+      scrollDiv.value.setScrollTop(getMaxHeight())
+    })
+  }
   if (!chartOpenId.value) {
-    getChartOpenId()
+    getChartOpenId(chat).catch((e) => {
+      errorWrite(chat)
+    })
   } else {
-    if (!chat) {
-      chat = reactive({
-        id: randomId(),
-        problem_text: inputValue.value,
-        answer_text: '',
-        buffer: [],
-        write_ed: false,
-        is_stop: false,
-        record_id: '',
-        vote_status: '-1'
-      })
-      chatList.value.push(chat)
-      inputValue.value = ''
-      nextTick(() => {
-        // 将滚动条滚动到最下面
-        scrollDiv.value.setScrollTop(getMaxHeight())
-      })
-    }
     // 对话
     applicationApi
       .postChatMessage(chartOpenId.value, chat.problem_text)
       .then((response) => {
         console.log(response.status)
         if (response.status === 401) {
-          application.asyncAppAuthentication(accessToken).then(() => {
-            chatMessage(chat)
-          })
+          application
+            .asyncAppAuthentication(accessToken)
+            .then(() => {
+              chatMessage(chat)
+            })
+            .catch((err) => {
+              errorWrite(chat)
+            })
         } else {
           nextTick(() => {
             // 将滚动条滚动到最下面
@@ -447,7 +468,6 @@ function chatMessage(chat?: any) {
       })
       .catch((e: any) => {
         MsgError(e)
-        ChatManagement.close(chat.id)
       })
   }
 }
diff --git a/ui/src/request/index.ts b/ui/src/request/index.ts
index 85354b032..1f994ec7f 100644
--- a/ui/src/request/index.ts
+++ b/ui/src/request/index.ts
@@ -53,12 +53,12 @@ instance.interceptors.response.use(
       console.error(err)
     }
     if (err.response?.status === 404) {
-      router.push('/404 ')
+      if (!err.response.config.url.includes('/application/authentication')) {
+        router.push('/404 ')
+      }
     }
     if (err.response?.status === 401) {
-      if (err.response.config.url.includes('chat/open')) {
-        router.push('/404 ')
-      } else {
+      if (!err.response.config.url.includes('chat/open')) {
         router.push({ name: 'login' })
       }
     }
diff --git a/ui/src/views/chat/index.vue b/ui/src/views/chat/index.vue
index 6dde80f90..d2bab84aa 100644
--- a/ui/src/views/chat/index.vue
+++ b/ui/src/views/chat/index.vue
@@ -6,7 +6,11 @@
       </div>
     </div>
     <div class="chat__main chat-width">
-      <AiChat v-model:data="applicationDetail" :appId="applicationDetail?.id"></AiChat>
+      <AiChat
+        v-model:data="applicationDetail"
+        :available="applicationAvailable"
+        :appId="applicationDetail?.id"
+      ></AiChat>
     </div>
     <div class="chat__footer"></div>
   </div>
@@ -25,16 +29,27 @@ const { application, user } = useStore()
 
 const loading = ref(false)
 const applicationDetail = ref<any>({})
+const applicationAvailable = ref<boolean>(true)
 
 function getAccessToken(token: string) {
-  application.asyncAppAuthentication(token, loading).then((res) => {
-    getProfile()
-  })
+  application
+    .asyncAppAuthentication(token, loading)
+    .then((res) => {
+      getProfile()
+    })
+    .catch(() => {
+      applicationAvailable.value = false
+    })
 }
 function getProfile() {
-  applicationApi.getProfile(loading).then((res) => {
-    applicationDetail.value = res.data
-  })
+  applicationApi
+    .getProfile(loading)
+    .then((res) => {
+      applicationDetail.value = res.data
+    })
+    .catch(() => {
+      applicationAvailable.value = false
+    })
 }
 onMounted(() => {
   user.changeUserType(2)