diff --git a/src/components/chat/AnsweringMark.vue b/src/components/chat/AnsweringMark.vue
new file mode 100644
index 0000000..c446551
--- /dev/null
+++ b/src/components/chat/AnsweringMark.vue
@@ -0,0 +1,40 @@
+<template>
+  <div class="box"></div>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue';
+
+export default defineComponent({
+  name: 'AnwseringMark',
+  data() {
+    return {};
+  },
+  computed: {
+    conversationId() {
+      return this.$route.params?.id?.toString();
+    }
+  }
+});
+</script>
+
+<style lang="scss">
+@keyframes blink {
+  0% {
+    opacity: 1;
+  }
+  50% {
+    opacity: 0;
+  }
+  100% {
+    opacity: 1;
+  }
+}
+.box {
+  width: 2px;
+  height: 16px;
+  margin-top: 3px;
+  background-color: var(--el-color-black);
+  animation: blink 1s infinite;
+}
+</style>
diff --git a/src/components/chat/Message.vue b/src/components/chat/Message.vue
index 485e2c6..4f937a3 100644
--- a/src/components/chat/Message.vue
+++ b/src/components/chat/Message.vue
@@ -2,23 +2,25 @@
   <div :class="'message ' + message.role">
     <div class="content">
       <markdown-renderer :content="message?.content" />
+      <answering-mark v-if="message.state === messageState.PENDING" />
     </div>
   </div>
 </template>
 
 <script lang="ts">
-import { IContent, IError, IMessage, IMessageState } from '@/operators/message/models';
+import { IContent, IError, IMessage } from '@/operators/message/models';
 import { defineComponent } from 'vue';
+import AnsweringMark from './AnsweringMark.vue';
 // import MessageContent from './MessageContent.vue';
 import { ElImage, ElButton } from 'element-plus';
 import { FontAwesomeIcon } from '@fortawesome/vue-fontawesome';
 import copy from 'copy-to-clipboard';
 import MarkdownRenderer from '@/components/common/MarkdownRenderer.vue';
-import { IChatMessage } from '@/operators';
+import { IChatMessage, IChatMessageState } from '@/operators';
 
 interface IData {
   copied: boolean;
-  messageState: typeof IMessageState;
+  messageState: typeof IChatMessageState;
 }
 
 export default defineComponent({
@@ -28,6 +30,7 @@ export default defineComponent({
     // ElImage,
     // ElButton,
     // FontAwesomeIcon
+    AnsweringMark,
     MarkdownRenderer
   },
   props: {
@@ -40,7 +43,7 @@ export default defineComponent({
   data(): IData {
     return {
       copied: false,
-      messageState: IMessageState
+      messageState: IChatMessageState
     };
   },
   computed: {
diff --git a/src/components/chat/ModelSelector.vue b/src/components/chat/ModelSelector.vue
index aa37f60..f18821e 100644
--- a/src/components/chat/ModelSelector.vue
+++ b/src/components/chat/ModelSelector.vue
@@ -92,14 +92,14 @@ export default defineComponent({
       const options = group.options;
       if (options && options.length > 0) {
         this.value = options[0];
-        this.$emit('select', options[0]);
         this.$emit('update:modelValue', options[0]);
+        this.$emit('select', options[0]);
       }
     },
     onCommandChange(command: IChatModel) {
       this.value = command;
-      this.$emit('select', command);
       this.$emit('update:modelValue', command);
+      this.$emit('select', command);
     }
   }
 });
diff --git a/src/components/common/ApiStatus.vue b/src/components/common/ApiStatus.vue
index f5220be..763a0b3 100644
--- a/src/components/common/ApiStatus.vue
+++ b/src/components/common/ApiStatus.vue
@@ -1,5 +1,5 @@
 <template>
-  <span v-if="application && !initializing" class="info">
+  <span v-if="application" class="info">
     {{ $t('conversation.message.usedCount') }}: {{ application?.used_amount }}
     {{ $t('conversation.message.remainingCount') }}: {{ application?.remaining_amount }}
   </span>
@@ -8,21 +8,14 @@
 <script lang="ts">
 import { defineComponent } from 'vue';
 import { IApplication } from '@/operators';
-import { ElSkeleton } from 'element-plus';
 
 export default defineComponent({
   name: 'ApiStatus',
-  components: {
-    ElSkeleton
-  },
+  components: {},
   props: {
     application: {
       type: Object as () => IApplication,
       required: true
-    },
-    initializing: {
-      type: Boolean,
-      required: true
     }
   },
   data() {
@@ -36,6 +29,6 @@ export default defineComponent({
 <style lang="scss">
 .info {
   font-size: 14px;
-  color: var(--el-color-black);
+  color: var(--el-text-color-regular);
 }
 </style>
diff --git a/src/components/conversation/AnsweringMark.vue b/src/components/conversation/AnsweringMark.vue
index b0bc8d0..2855e03 100644
--- a/src/components/conversation/AnsweringMark.vue
+++ b/src/components/conversation/AnsweringMark.vue
@@ -6,7 +6,7 @@
 import { defineComponent } from 'vue';
 
 export default defineComponent({
-  name: 'MessageContent',
+  name: 'AnwseringMark',
   data() {
     return {};
   },
diff --git a/src/operators/chat/models.ts b/src/operators/chat/models.ts
index c4ddf04..0dd7ab1 100644
--- a/src/operators/chat/models.ts
+++ b/src/operators/chat/models.ts
@@ -41,20 +41,38 @@ export interface IChatMessage {
   error?: IError;
 }
 
-export interface IChatOptions {
-  stream?: (response: IChatResponse) => void;
+export interface IChatHistory {
+  conversation_id: string;
+  messages: IChatMessage[];
+}
+
+export interface IChatAskOptions {
+  stream?: (response: IChatAskResponse) => void;
   token: string;
-  endpoint?: string;
+  endpoint: string;
+  path: string;
+}
+
+export interface IChatHistoryOptions {
+  endpoint: string;
+  path: string;
 }
 
-export interface IChatRequest {
+export interface IChatAskRequest {
   question: string;
   stateful?: boolean;
   conversation_id?: string;
 }
 
-export interface IChatResponse {
+export interface IChatAskResponse {
   answer: string;
   delta_answer: string;
   conversation_id?: string;
 }
+
+export interface IChatHistoryRequest {
+  action: string;
+  conversation_id: string;
+}
+
+export type IChatHistoryResponse = IChatHistory;
diff --git a/src/operators/chat/operator.ts b/src/operators/chat/operator.ts
index 7e0fc3a..f411329 100644
--- a/src/operators/chat/operator.ts
+++ b/src/operators/chat/operator.ts
@@ -1,10 +1,16 @@
 import axios, { AxiosResponse, AxiosRequestConfig } from 'axios';
-import { IChatOptions, IChatRequest, IChatResponse } from './models';
-import store from '@/store';
+import {
+  IChatHistoryRequest,
+  IChatHistoryResponse,
+  IChatAskOptions,
+  IChatAskRequest,
+  IChatAskResponse,
+  IChatHistoryOptions
+} from './models';
 
 class ChatOperator {
-  async request(data: IChatRequest, options: IChatOptions): Promise<AxiosResponse<IChatResponse>> {
-    return await axios.post(`/chatgpt`, data, {
+  async ask(data: IChatAskRequest, options: IChatAskOptions): Promise<AxiosResponse<IChatAskResponse>> {
+    return await axios.post(options.path, data, {
       headers: {
         authorization: `Bearer ${options.token}`,
         accept: 'application/x-ndjson',
@@ -19,12 +25,21 @@ class ChatOperator {
         if (lastLine) {
           const jsonData = JSON.parse(lastLine);
           if (options?.stream) {
-            options?.stream(jsonData as IChatResponse);
+            options?.stream(jsonData as IChatAskResponse);
           }
         }
       }
     });
   }
+
+  async history(data: IChatHistoryRequest, options: IChatHistoryOptions): Promise<AxiosResponse<IChatHistoryResponse>> {
+    return await axios.post(options.path, data, {
+      headers: {
+        'content-type': 'application/json'
+      },
+      baseURL: options.endpoint
+    });
+  }
 }
 
 export const chatOperator = new ChatOperator();
diff --git a/src/pages/chat/Conversation.vue b/src/pages/chat/Conversation.vue
index ec8bfa7..77b4330 100644
--- a/src/pages/chat/Conversation.vue
+++ b/src/pages/chat/Conversation.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="page">
-    <model-selector v-model="model" class="model-selector" @select="onLoadModel" />
-    <api-status v-if="application" :application="application" :initializing="initializing" />
+    <model-selector v-model="model" class="model-selector" @select="onSelectModel" />
+    <api-status :application="application" />
     <div class="main">
       <introduction v-if="messages && messages.length === 0" />
       <div v-else class="messages">
@@ -17,18 +17,18 @@
 </template>
 
 <script lang="ts">
-import { IMessage, IMessageState, ROLE_ASSISTANT, ROLE_USER } from '@/operators/message/models';
+import { ROLE_ASSISTANT, ROLE_USER } from '@/operators/message/models';
 import { defineComponent } from 'vue';
 import Message from '@/components/chat/Message.vue';
 import {
   IChatModel,
   IChatMessage,
   CHAT_MODEL_CHATGPT,
-  IChatResponse,
   API_ID_CHATGPT,
   applicationOperator,
   IApplication,
-  IChatMessageState
+  IChatMessageState,
+  IChatAskResponse
 } from '@/operators';
 import InputBox from '@/components/chat/InputBox.vue';
 import ModelSelector from '@/components/chat/ModelSelector.vue';
@@ -36,7 +36,7 @@ import { chatOperator } from '@/operators';
 import { ERROR_CODE_CANCELED, ERROR_CODE_UNKNOWN } from '@/constants/errorCode';
 import axios from 'axios';
 import ApiStatus from '@/components/common/ApiStatus.vue';
-import { ROUTE_CHAT_CONVERSATION } from '@/router';
+import { ROUTE_CHAT_CONVERSATION, ROUTE_CHAT_CONVERSATION_NEW } from '@/router';
 
 export interface IData {
   messages: IChatMessage[];
@@ -71,11 +71,45 @@ export default defineComponent({
       return this.$route.params.id?.toString();
     }
   },
-  mounted() {
+  async mounted() {
     console.log('mounted');
-    this.onLoadModel();
+    await this.onLoadModel();
+    await this.onLoadHistory();
   },
   methods: {
+    async onCreateNewConversation() {
+      this.messages = [];
+      await this.$router.push({
+        name: ROUTE_CHAT_CONVERSATION_NEW
+      });
+    },
+    async onLoadHistory() {
+      if (!this.conversationId) {
+        return;
+      }
+      const endpoint = this.application?.api?.endpoint;
+      const path = this.application?.api?.path;
+      console.log(endpoint, path);
+      if (!endpoint || !path) {
+        console.error('no endpoint or path');
+        return;
+      }
+      const { data: data } = await chatOperator.history(
+        {
+          action: 'retrieve',
+          conversation_id: this.conversationId
+        },
+        {
+          endpoint,
+          path: `${path}/history`
+        }
+      );
+      this.messages = data.messages || [];
+    },
+    async onSelectModel() {
+      await this.onCreateNewConversation();
+      await this.onLoadModel();
+    },
     async onLoadModel() {
       this.initializing = true;
       const { data: applications } = await applicationOperator.getAll({
@@ -95,14 +129,14 @@ export default defineComponent({
         role: ROLE_USER
       });
       this.question = '';
-
       await this.onFetchAnswer();
     },
     async onFetchAnswer() {
       const token = this.application?.credential?.token;
       const endpoint = this.application?.api?.endpoint;
+      const path = this.application?.api?.path;
       const question = this.messages[this.messages.length - 1].content;
-      if (!token || !endpoint || !question) {
+      if (!token || !endpoint || !question || !path) {
         console.error('no token or endpoint or question');
         return;
       }
@@ -113,7 +147,7 @@ export default defineComponent({
       });
       // request server to get answer
       chatOperator
-        .request(
+        .ask(
           {
             question,
             conversation_id: this.conversationId,
@@ -122,8 +156,13 @@ export default defineComponent({
           {
             token,
             endpoint,
-            stream: (response: IChatResponse) => {
-              this.messages[this.messages.length - 1].content = response.answer;
+            path,
+            stream: (response: IChatAskResponse) => {
+              this.messages[this.messages.length - 1] = {
+                role: ROLE_ASSISTANT,
+                content: response.answer,
+                state: IChatMessageState.ANSWERING
+              };
               if (!this.conversationId) {
                 this.$router.push({
                   name: ROUTE_CHAT_CONVERSATION,
@@ -137,6 +176,7 @@ export default defineComponent({
         )
         .then(() => {
           this.messages[this.messages.length - 1].state = IChatMessageState.FINISHED;
+          this.onLoadModel();
         })
         .catch((error) => {
           if (this.messages && this.messages.length > 0) {
@@ -176,7 +216,7 @@ export default defineComponent({
     flex: 1;
     width: 100%;
     overflow-y: scroll;
-    padding: 15px 0;
+    padding: 15px;
     .messages {
       .message {
         margin-bottom: 15px;