diff --git a/api/aifn.ts b/api/aifn.ts
index 578fd5f..a8bd944 100644
--- a/api/aifn.ts
+++ b/api/aifn.ts
@@ -7,77 +7,6 @@ export type AIGeneratedContentResponse = IResponse<{
   }
 }>
 
-export const AGCStream = async <ReqT>(
-  endpoint: string,
-  params: ReqT,
-  events: {
-    onTextChunk?: (message: string) => void
-    onComplete?: () => void
-  }) => {
-  const { onTextChunk: onMessage, onComplete } = events
-
-  const loginState = useLoginState()
-
-  const runtimeConfig = useRuntimeConfig()
-  const baseURL = runtimeConfig.public.baseURL as string
-
-  const response = await fetch(new URL(endpoint, baseURL), {
-    method: 'POST',
-    headers: {
-      'Content-Type': 'application/json',
-      'Accept': 'text/event-stream',
-      'Authorization': `Bearer ${loginState.token}`,
-    },
-    body: JSON.stringify(params),
-  })
-
-  if (!response) {
-    throw new Error('Network response was not ok')
-  }
-
-  const reader = response.body?.getReader()
-  const decoder = new TextDecoder('utf-8')
-  let buffer = ''
-
-  while (true) {
-    const { done, value } = await reader?.read() || {}
-    if (done) break
-
-    buffer += decoder.decode(value, { stream: true })
-
-    const parts = buffer.split('\n\n')
-    buffer = parts.pop()!
-
-    for (const part of parts) {
-      if (!part.trim().startsWith('data:')) continue
-      const payload = part.replace(/^data:\s*/, '').trim()
-
-      try {
-        const obj = JSON.parse(payload)
-        if (obj?.event && obj.event === 'workflow_finished') {
-          onComplete?.()
-          return
-        }
-        if (obj?.event && obj.event === 'text_chunk') {
-          let text_chunk = obj.data?.text as string
-          if (text_chunk) {
-            if (text_chunk.startsWith('<') && text_chunk.endsWith('>')) {
-              const endTag = text_chunk.match(/<\/[^>]*>/)
-              if (endTag) {
-                text_chunk = text_chunk.replace(endTag[0], '\n' + endTag[0])
-              }
-            }
-            onMessage?.(text_chunk)
-          }
-        }
-      } catch {
-        // ignore
-      }
-    }
-  }
-  onComplete?.()
-}
-
 export const generateLessonPlan = async (params: {
   query: string
 }) => {
diff --git a/components/ai/Conversation.vue b/components/ai/Conversation.vue
index af25735..989daf1 100644
--- a/components/ai/Conversation.vue
+++ b/components/ai/Conversation.vue
@@ -2,9 +2,9 @@
 <script lang="ts" setup>
 import type { FormContext } from 'vee-validate'
 import type { AnyZodObject } from 'zod'
-import type { LLMMessage, LLMMessages } from '.'
+import dayjs from 'dayjs'
+import type { LLMConversation } from '.'
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
 const props = defineProps<{
   formSchema: AnyZodObject
   form: FormContext<any>
@@ -15,36 +15,129 @@ const props = defineProps<{
       [key: string]: any
     }
   }
-  messages?: LLMMessage[]
-  messagesHistory?: LLMMessages[]
+  conversations?: LLMConversation[]
+  activeConversationId?: string | null
   disableUserInput?: boolean
 }>()
 
-defineEmits<{
+const messages = computed(() => {
+  const { conversations, activeConversationId } = props
+  if (conversations && activeConversationId) {
+    const conversation = conversations.find(
+      (m) => m.id === activeConversationId,
+    )
+    return conversation ? conversation.messages : []
+  }
+  return []
+})
+
+const emit = defineEmits<{
   (e: 'submit', values: FormContext<any>['values']): void
+  (e: 'update:conversationId', conversationId: string | null): void
+  (e: 'deleteConversation', conversationId: string): void
 }>()
+
+const onDeleteConversation = (conversationId: string) => {
+  emit('deleteConversation', conversationId)
+  if (conversationId === props.activeConversationId) {
+    emit('update:conversationId', null)
+  }
+}
 </script>
 
 <template>
   <div class="h-full flex flex-col gap-4">
     <div class="flex justify-between items-start">
-      <div></div>
+      <div>
+        <Button
+          v-if="activeConversationId"
+          variant="link"
+          size="sm"
+          @click="$emit('update:conversationId', null)"
+        >
+          <Icon name="tabler:arrow-back" />
+          返回
+        </Button>
+      </div>
       <div>
         <!-- Histories -->
-        <Button
-          variant="outline"
-          size="sm"
-        >
-          <Icon name="tabler:history" />
-          历史记录
-        </Button>
+        <Popover>
+          <PopoverTrigger>
+            <Button
+              variant="outline"
+              size="sm"
+            >
+              <Icon name="tabler:history" />
+              历史记录
+            </Button>
+          </PopoverTrigger>
+          <PopoverContent
+            align="end"
+            class="p-0"
+          >
+            <ScrollArea
+              v-if="conversations?.length"
+              class="flex flex-col gap-2 p-3 h-[320px]"
+            >
+              <div
+                v-for="(conversation, i) in props.conversations"
+                :key="i"
+                class="flex items-start gap-2 p-2 rounded-md cursor-pointer relative"
+                :class="`${conversation.id === activeConversationId ? 'bg-primary text-primary-foreground' : 'hover:bg-muted'}`"
+                @click="$emit('update:conversationId', conversation.id)"
+              >
+                <Button
+                  variant="ghost"
+                  size="icon"
+                  class="absolute top-1.5 right-2"
+                  @click.stop="onDeleteConversation(conversation.id)"
+                >
+                  <Icon name="tabler:trash" />
+                </Button>
+
+                <Icon
+                  name="tabler:history"
+                  class="mt-0.5"
+                />
+                <div class="flex-1 text-sm font-medium flex flex-col">
+                  <span class="w-2/3 text-ellipsis line-clamp-1">
+                    {{ conversation.title || '历史对话' }}
+                  </span>
+                  <span
+                    class="text-xs"
+                    :class="`${conversation.id === activeConversationId ? 'text-primary-foreground/60' : 'text-muted-foreground'}`"
+                  >
+                    {{
+                      dayjs((conversation.created_at || 0) * 1000).format(
+                        'YYYY-MM-DD HH:mm:ss',
+                      )
+                    }}
+                  </span>
+                </div>
+              </div>
+              <p class="text-xs text-muted-foreground/60 font-medium text-center pt-2">
+                到底了
+              </p>
+            </ScrollArea>
+            <div
+              v-else
+              class="flex flex-col items-center justify-center gap-2 h-[320px]"
+            >
+              <Icon
+                name="tabler:history"
+                class="text-3xl text-muted-foreground"
+              />
+              <p class="text-sm text-muted-foreground">暂无历史记录</p>
+            </div>
+          </PopoverContent>
+        </Popover>
       </div>
     </div>
     <hr />
 
     <!-- 消息区域调整 -->
     <div
-      v-if="messages && messages.length > 0"
+      v-if="activeConversationId"
       class="flex flex-col flex-1 gap-4 max-h-[calc(100vh-280px)]"
     >
       <div
diff --git a/components/ai/index.ts b/components/ai/index.ts
index d4c2cc2..6e52e9b 100644
--- a/components/ai/index.ts
+++ b/components/ai/index.ts
@@ -8,14 +8,15 @@ export interface AIGeneratedContentItem {
   content: string
 }
 
+export interface LLMConversation {
+  id: string
+  created_at?: number
+  finished_at?: number
+  title: string
+  messages: LLMMessage[]
+}
+
 export interface LLMMessage {
   role: 'user' | 'assistant' | 'system'
   content: string
 }
-
-export interface LLMMessages {
-  id?: string | number
-  timestamp: number
-  title: string
-  messages: LLMMessage[]
-}
diff --git a/components/fn/teach/StdDesign.vue b/components/fn/teach/StdDesign.vue
index 8026746..df121f5 100644
--- a/components/fn/teach/StdDesign.vue
+++ b/components/fn/teach/StdDesign.vue
@@ -1,11 +1,49 @@
 <script lang="ts" setup>
 import { toTypedSchema } from '@vee-validate/zod'
 import { useForm } from 'vee-validate'
+import { toast } from 'vue-sonner'
 import { z } from 'zod'
-import { AGCStream } from '~/api/aifn'
-import type { LLMMessage } from '~/components/ai'
 
-const messages = ref<LLMMessage[]>([])
+const route = useRoute()
+const router = useRouter()
+
+const historyStore = useLlmHistories('course-std-design')
+const { conversations } = storeToRefs(historyStore)
+const {
+  updateConversation,
+  appendChunkToLast,
+  isConversationExist
+} = historyStore
+
+const activeConversationId = ref<string | null>(null)
+
+watch(activeConversationId, (val) => {
+  if (val) {
+    router.replace({
+      query: {
+        fn: route.query.fn,
+        conversationId: val,
+      },
+    })
+  } else {
+    router.replace({
+      query: {
+        fn: route.query.fn,
+      },
+    })
+  }
+})
+
+onMounted(() => {
+  if (route.query.conversationId) {
+    if (isConversationExist(route.query.conversationId as string)) {
+      activeConversationId.value = route.query.conversationId as string
+    } else {
+      activeConversationId.value = null
+      toast.error('会话不存在')
+    }
+  }
+})
 
 const schema = z.object({
   query: z.string().describe('课程名称'),
@@ -16,25 +54,37 @@ const form = useForm({
 })
 
 const onSubmit = (values: z.infer<typeof schema>) => {
-  // const valuesNoNil = useOmitBy(values, (v) => v == null || v === '')
-  messages.value.push({
-    role: 'user',
-    content: `*生成一份 ${values.query} 的课程标准*`,
-  })
-  messages.value.push({
-    role: 'assistant',
-    content: '',
-  })
-  AGCStream(
+  http_stream(
     '/ai/course-standard/stream',
-    { query: values.query },
     {
-      onTextChunk: (chunk) => {
-        console.log(chunk)
-        messages.value[messages.value.length - 1].content += chunk
+      query: values.query,
+    },
+    {
+      onStart(id, created_at) {
+        activeConversationId.value = id
+        updateConversation(id, {
+          id,
+          created_at,
+          title: values.query,
+          messages: [
+            {
+              role: 'user',
+              content: `*生成一份 ${values.query} 的课程标准*`,
+            },
+            {
+              role: 'assistant',
+              content: '',
+            },
+          ],
+        })
       },
-      onComplete: () => {
-        console.log('complete')
+      onTextChunk: (chunk) => {
+        appendChunkToLast(activeConversationId.value!, chunk)
+      },
+      onComplete: (id, finished_at) => {
+        updateConversation(id!, {
+          finished_at,
+        })
       },
     },
   )
@@ -46,9 +96,12 @@ const onSubmit = (values: z.infer<typeof schema>) => {
     <AiConversation
       :form
       :form-schema="schema"
-      :messages="messages"
+      :conversations
+      :active-conversation-id="activeConversationId"
       disable-user-input
       @submit="onSubmit"
+      @update:conversation-id="activeConversationId = $event"
+      @delete-conversation="historyStore.removeConversation($event)"
     />
   </div>
 </template>
diff --git a/components/ui/scroll-area/ScrollArea.vue b/components/ui/scroll-area/ScrollArea.vue
new file mode 100644
index 0000000..8876d53
--- /dev/null
+++ b/components/ui/scroll-area/ScrollArea.vue
@@ -0,0 +1,29 @@
+<script setup lang="ts">
+import { cn } from '@/lib/utils'
+import {
+  ScrollAreaCorner,
+  ScrollAreaRoot,
+  type ScrollAreaRootProps,
+  ScrollAreaViewport,
+} from 'reka-ui'
+import { computed, type HTMLAttributes } from 'vue'
+import ScrollBar from './ScrollBar.vue'
+
+const props = defineProps<ScrollAreaRootProps & { class?: HTMLAttributes['class'] }>()
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props
+
+  return delegated
+})
+</script>
+
+<template>
+  <ScrollAreaRoot v-bind="delegatedProps" :class="cn('relative overflow-hidden', props.class)">
+    <ScrollAreaViewport class="h-full w-full rounded-[inherit]">
+      <slot />
+    </ScrollAreaViewport>
+    <ScrollBar />
+    <ScrollAreaCorner />
+  </ScrollAreaRoot>
+</template>
diff --git a/components/ui/scroll-area/ScrollBar.vue b/components/ui/scroll-area/ScrollBar.vue
new file mode 100644
index 0000000..59f723a
--- /dev/null
+++ b/components/ui/scroll-area/ScrollBar.vue
@@ -0,0 +1,30 @@
+<script setup lang="ts">
+import { cn } from '@/lib/utils'
+import { ScrollAreaScrollbar, type ScrollAreaScrollbarProps, ScrollAreaThumb } from 'reka-ui'
+import { computed, type HTMLAttributes } from 'vue'
+
+const props = withDefaults(defineProps<ScrollAreaScrollbarProps & { class?: HTMLAttributes['class'] }>(), {
+  orientation: 'vertical',
+})
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props
+
+  return delegated
+})
+</script>
+
+<template>
+  <ScrollAreaScrollbar
+    v-bind="delegatedProps"
+    :class="
+      cn('flex touch-none select-none transition-colors',
+         orientation === 'vertical'
+           && 'h-full w-2.5 border-l border-l-transparent p-px',
+         orientation === 'horizontal'
+           && 'h-2.5 flex-col border-t border-t-transparent p-px',
+         props.class)"
+  >
+    <ScrollAreaThumb class="relative flex-1 rounded-full bg-border" />
+  </ScrollAreaScrollbar>
+</template>
diff --git a/components/ui/scroll-area/index.ts b/components/ui/scroll-area/index.ts
new file mode 100644
index 0000000..2bd4fae
--- /dev/null
+++ b/components/ui/scroll-area/index.ts
@@ -0,0 +1,2 @@
+export { default as ScrollArea } from './ScrollArea.vue'
+export { default as ScrollBar } from './ScrollBar.vue'
diff --git a/stores/llmHistories.ts b/stores/llmHistories.ts
new file mode 100644
index 0000000..5d980e0
--- /dev/null
+++ b/stores/llmHistories.ts
@@ -0,0 +1,98 @@
+import type { LLMConversation, LLMMessage } from '~/components/ai'
+
+export function useLlmHistories(key: string) {
+  const useStore = defineStore(
+    `llmConversations/${key}`,
+    () => {
+      const conversations = ref<LLMConversation[]>([])
+
+      const createConversation = (conversation: LLMConversation) => {
+        const index = conversations.value.findIndex(c => c.id === conversation.id)
+        if (index >= 0) {
+          conversations.value[index] = conversation
+        } else {
+          conversations.value.unshift(conversation)
+        }
+      }
+
+      const getConversation = (conversationId: string) => {
+        const index = conversations.value.findIndex(c => c.id === conversationId)
+        return index >= 0 ? conversations.value[index] : null
+      }
+
+      const updateConversation = (conversationId: string, conversation: Partial<LLMConversation>) => {
+        const index = conversations.value.findIndex(c => c.id === conversationId)
+        if (index >= 0) {
+          conversations.value[index] = {
+            ...conversations.value[index],
+            ...conversation,
+          }
+        } else {
+          createConversation({
+            id: conversationId,
+            ...conversation,
+          } as LLMConversation)
+        }
+      }
+
+      const removeConversation = (conversationId: string) => {
+        const index = conversations.value.findIndex(c => c.id === conversationId)
+        if (index >= 0) {
+          conversations.value.splice(index, 1)
+        }
+      }
+
+      const isConversationExist = (conversationId: string) => {
+        return conversations.value.some(c => c.id === conversationId)
+      }
+
+      const putMessageToConv = (conversationId: string, message: LLMMessage) => {
+        const index = conversations.value.findIndex(c => c.id === conversationId)
+        if (index >= 0) {
+          const conversation = conversations.value[index]
+          conversation.messages.push(message)
+          conversations.value[index] = conversation
+        } else {
+          const newConversation: LLMConversation = {
+            id: conversationId,
+            title: '',
+            messages: [message],
+          }
+          conversations.value.unshift(newConversation)
+        }
+      }
+
+      const appendChunkToLast = (conversationId: string, chunk: string) => {
+        const index = conversations.value.findIndex(c => c.id === conversationId)
+        if (index >= 0) {
+          const conversation = conversations.value[index]
+          const lastMessage = conversation.messages[conversation.messages.length - 1]
+          if (lastMessage && lastMessage.role === 'assistant') {
+            lastMessage.content += chunk
+            conversations.value[index] = conversation
+          }
+        }
+      }
+
+      return {
+        conversations,
+        createConversation,
+        getConversation,
+        updateConversation,
+        removeConversation,
+        putMessageToConv,
+        appendChunkToLast,
+        isConversationExist
+      }
+    },
+    {
+      persist: {
+        key: `xshic_llm_histories_${key}`,
+        storage: piniaPluginPersistedstate.localStorage(),
+        pick: ['conversations'],
+      },
+    }
+  )
+
+  return useStore()
+}
diff --git a/utils/http.ts b/utils/http.ts
index b0b198a..8d8c58e 100644
--- a/utils/http.ts
+++ b/utils/http.ts
@@ -39,3 +39,78 @@ export const http = async <T>(
     }
   }
 }
+
+export const http_stream = async <ReqT>(
+  endpoint: string,
+  params: ReqT,
+  events: {
+    onStart?: (id: string, created_at?: number) => void
+    onTextChunk?: (message: string) => void
+    onComplete?: (id: string | null, finished_at?: number) => void
+  }) => {
+  const { onStart, onTextChunk, onComplete } = events
+
+  const loginState = useLoginState()
+
+  const runtimeConfig = useRuntimeConfig()
+  const baseURL = runtimeConfig.public.baseURL as string
+
+  const response = await fetch(new URL(endpoint, baseURL), {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+      'Accept': 'text/event-stream',
+      'Authorization': `Bearer ${loginState.token}`,
+    },
+    body: JSON.stringify(params),
+  })
+
+  if (!response) {
+    throw new Error('Network response was not ok')
+  }
+
+  const reader = response.body?.getReader()
+  const decoder = new TextDecoder('utf-8')
+  let buffer = ''
+
+  while (true) {
+    const { done, value } = await reader?.read() || {}
+    if (done) break
+
+    buffer += decoder.decode(value, { stream: true })
+
+    const parts = buffer.split('\n\n')
+    buffer = parts.pop()!
+
+    for (const part of parts) {
+      if (!part.trim().startsWith('data:')) continue
+      const payload = part.replace(/^data:\s*/, '').trim()
+
+      try {
+        const obj = JSON.parse(payload)
+        if (obj?.event && obj.event === 'workflow_started') {
+          onStart?.(obj?.data?.id || null, obj?.data?.created_at || 0)
+        }
+        if (obj?.event && obj.event === 'workflow_finished') {
+          onComplete?.(obj?.data?.id || null, obj?.data?.finished_at || 0)
+          return
+        }
+        if (obj?.event && obj.event === 'text_chunk') {
+          let text_chunk = obj.data?.text as string
+          if (text_chunk) {
+            if (text_chunk.startsWith('<') && text_chunk.endsWith('>')) {
+              const endTag = text_chunk.match(/<\/[^>]*>/)
+              if (endTag) {
+                text_chunk = text_chunk.replace(endTag[0], '\n' + endTag[0])
+              }
+            }
+            onTextChunk?.(text_chunk)
+          }
+        }
+      } catch {
+        // ignore
+      }
+    }
+  }
+  onComplete?.(null)
+}