diff --git a/ui/src/components/ai-chat/index.vue b/ui/src/components/ai-chat/index.vue
index 5d8e4fdd8..10af298d3 100644
--- a/ui/src/components/ai-chat/index.vue
+++ b/ui/src/components/ai-chat/index.vue
@@ -85,8 +85,8 @@
                       plain
                       size="small"
                       @click="openParagraph(item)"
-                      :disabled="item.paragraph_list?.length === 0"
-                      >引用分段：{{ item.paragraph_list?.length }}</el-button
+                      :disabled="!item.paragraph_list || item.paragraph_list?.length === 0"
+                      >引用分段：{{ item.paragraph_list?.length || 0 }}</el-button
                     >
                     <el-tag type="info" effect="plain">
                       消耗 tokens: {{ item?.message_tokens + item?.answer_tokens }}
diff --git a/ui/src/views/dataset/component/EditParagraphDialog.vue b/ui/src/views/dataset/component/EditParagraphDialog.vue
index 99a09b49f..f5808378d 100644
--- a/ui/src/views/dataset/component/EditParagraphDialog.vue
+++ b/ui/src/views/dataset/component/EditParagraphDialog.vue
@@ -1,6 +1,6 @@
 <template>
-  <el-dialog title="编辑分段" v-model="dialogVisible" width="600">
-    <ParagraphForm ref="paragraphFormRef" :data="detail" :isEdit="true"/>
+  <el-dialog title="编辑分段" v-model="dialogVisible" width="600" destroy-on-close>
+    <ParagraphForm ref="paragraphFormRef" :data="detail" :isEdit="true" />
     <template #footer>
       <span class="dialog-footer">
         <el-button @click.prevent="dialogVisible = false"> 取消 </el-button>