diff --git a/yunkes/src/api/index.ts b/yunkes/src/api/index.ts
index 9045666..29dad02 100644
--- a/yunkes/src/api/index.ts
+++ b/yunkes/src/api/index.ts
@@ -76,7 +76,8 @@ export function getCustomers(query: CustomerQuery = {}): Promise<Page<Customer>>
 
 export interface MessageQuery {
   channel?: Channel
-  owner_account_id: string
+  /** 群聊按 room_id 查时可省略(chat_group owner 与消息 owner 可能错位)。 */
+  owner_account_id?: string
   talker_id?: string
   room_id?: string
   start?: number
diff --git a/yunkes/src/views/ChatTimeline.vue b/yunkes/src/views/ChatTimeline.vue
index 039ced4..12c9699 100644
--- a/yunkes/src/views/ChatTimeline.vue
+++ b/yunkes/src/views/ChatTimeline.vue
@@ -170,11 +170,13 @@ function scrollToBottom(): void {
 function queryFor(pageNum: number) {
   return {
     channel: channelTyped.value,
-    owner_account_id: props.ownerId,
-    talker_id: isGroup.value ? undefined : props.talkerId,
-    room_id: isGroup.value ? props.roomId : undefined,
-    start: winStart.value,
-    end: winEnd.value,
+    // 群聊不带 owner:chat_group 表按 room_id 去重、owner 被最后写入的员工
+    // 覆盖,与消息实际归属的 owner 错位会查空(实测 2026-08-22);room 全局
+    // 唯一且消息只在单一 owner 名下(多 owner 群=0),按 room 查即正确。
+    ...(isGroup.value
+      ? { room_id: props.roomId as string }
+      : { owner_account_id: props.ownerId, talker_id: props.talkerId as string }),
+    ...(winStart.value != null && winEnd.value != null ? { start: winStart.value, end: winEnd.value } : {}),
     page: pageNum,
     page_size: PAGE_SIZE,
   }