diff --git a/web/app/dashboard/conversation-monitor/_components/detail.tsx b/web/app/dashboard/conversation-monitor/_components/detail.tsx
index f98de41..6890862 100644
--- a/web/app/dashboard/conversation-monitor/_components/detail.tsx
+++ b/web/app/dashboard/conversation-monitor/_components/detail.tsx
@@ -33,7 +33,7 @@ type ConversationDetailDialogProps = {
   saving: boolean;
   item: AdminConversation | null;
   detail: AdminConversationDetail | null;
-  messages: AdminMessage[];
+  messages?: AdminMessage[] | null;
   /** 是否还有更早消息（cursor 分页） */
   messagesHasMore?: boolean;
   loadingMoreMessages?: boolean;
@@ -139,7 +139,7 @@ export function ConversationDetailDialog({
   saving,
   item,
   detail,
-  messages,
+  messages: rawMessages,
   messagesHasMore = false,
   loadingMoreMessages = false,
   onLoadMoreMessages,
@@ -150,6 +150,7 @@ export function ConversationDetailDialog({
   onRead,
   onOpenClose,
 }: ConversationDetailDialogProps) {
+  const messages = Array.isArray(rawMessages) ? rawMessages : [];
   const currentConversation = detail ?? item;
   const isClosedConversation = currentConversation?.status === 4;
   const isPendingConversation = currentConversation?.status === 2;
diff --git a/web/app/dashboard/conversation-monitor/page.tsx b/web/app/dashboard/conversation-monitor/page.tsx
index f446424..1feccfe 100644
--- a/web/app/dashboard/conversation-monitor/page.tsx
+++ b/web/app/dashboard/conversation-monitor/page.tsx
@@ -456,7 +456,7 @@ export default function DashboardConversationsPage() {
         fetchConversationMessages({ conversationId: item.id, limit: 20 }),
       ])
       setDetailData(detail)
-      setDetailMessages(messages.results)
+      setDetailMessages(Array.isArray(messages.results) ? messages.results : [])
       setDetailMessagesNextCursor(messages.cursor ?? "")
       setDetailMessagesHasMore(Boolean(messages.hasMore))
     } catch (error) {
@@ -481,7 +481,8 @@ export default function DashboardConversationsPage() {
         cursor,
         limit: 20,
       })
-      setDetailMessages((prev) => [...page.results, ...prev])
+      const nextResults = Array.isArray(page.results) ? page.results : []
+      setDetailMessages((prev) => [...nextResults, ...prev])
       setDetailMessagesNextCursor(page.cursor ?? "")
       setDetailMessagesHasMore(Boolean(page.hasMore))
     } catch (error) {
diff --git a/web/lib/api/admin.ts b/web/lib/api/admin.ts
index 68de308..31fb25a 100644
--- a/web/lib/api/admin.ts
+++ b/web/lib/api/admin.ts
@@ -14,7 +14,7 @@ export type PageResult<T> = {
 }
 
 export type CursorResult<T> = {
-  results: T[]
+  results?: T[] | null
   cursor: string
   hasMore: boolean
 }