diff --git a/src/onebot/action/group/GetGroupMemberInfo.ts b/src/onebot/action/group/GetGroupMemberInfo.ts
index 3c2db5b37..783b6671a 100644
--- a/src/onebot/action/group/GetGroupMemberInfo.ts
+++ b/src/onebot/action/group/GetGroupMemberInfo.ts
@@ -31,18 +31,18 @@ class GetGroupMemberInfo extends BaseAction<Payload, OB11GroupMember> {
             NTQQGroupApi.getGroupMemberV2(payload.group_id.toString(), uid, isNocache),
             NTQQUserApi.getUserDetailInfo(uid),
         ]);
-        if (member.status !== 'fulfilled') throw new Error(`群(${payload.group_id})成员${payload.user_id}不存在 ${member.reason}`);
+        if (member.status !== 'fulfilled') throw new Error(`群(${payload.group_id})成员${payload.user_id}获取失败 ${member.reason}`);
+        if (!member.value) throw new Error(`群(${payload.group_id})成员${payload.user_id}不存在`);
         if (info.status === 'fulfilled') {
-            this.core.context.logger.logDebug('群成员详细信息结果', info.value);
-            Object.assign(member, info.value);
+            Object.assign(member.value, info.value);
         } else {
             this.core.context.logger.logDebug(`获取群成员详细信息失败, 只能返回基础信息 ${info.reason}`);
         }
         const date = Math.round(Date.now() / 1000);
         const retMember = OB11Entities.groupMember(payload.group_id.toString(), member.value as GroupMember);
         const Member = await this.core.apis.GroupApi.getGroupMember(payload.group_id.toString(), retMember.user_id);
-        retMember.last_sent_time = parseInt(Member?.lastSpeakTime || date.toString());
-        retMember.join_time = parseInt(Member?.joinTime || date.toString());
+        retMember.last_sent_time = parseInt(Member?.lastSpeakTime ?? date.toString());
+        retMember.join_time = parseInt(Member?.joinTime ?? date.toString());
         return retMember;
     }
 }