diff --git a/ui/src/components/ai-chat/index.vue b/ui/src/components/ai-chat/index.vue
index 5d8e4fdd..10af298d 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 }}