diff --git a/services/room-service/configs/config.docker.yaml b/services/room-service/configs/config.docker.yaml
index 0edfeead..f9fe076a 100644
--- a/services/room-service/configs/config.docker.yaml
+++ b/services/room-service/configs/config.docker.yaml
@@ -63,7 +63,7 @@ rocketmq:
     enabled: true
     topic: "hyapp_room_outbox"
     producer_group: "hyapp-room-outbox-producer"
-    tencent_im_consumer_enabled: false
+    tencent_im_consumer_enabled: true
     tencent_im_consumer_group: "hyapp-room-im-bridge"
     consumer_max_reconsume_times: 16
   treasure_open:
@@ -73,7 +73,7 @@ rocketmq:
     consumer_group: "hyapp-room-treasure-open"
     consumer_max_reconsume_times: 16
 outbox_worker:
-  # Docker 本地走 MQ，避免本地统计链路验证时混入真实 IM 直投副作用。
+  # Docker 和 testbox 走 MQ；room-service 同进程启动 IM bridge consumer 补偿房间群消息。
   enabled: true
   publish_mode: "mq"
   poll_interval: "1s"
diff --git a/services/room-service/internal/config/config_test.go b/services/room-service/internal/config/config_test.go
index 49025d12..f8bbd9ef 100644
--- a/services/room-service/internal/config/config_test.go
+++ b/services/room-service/internal/config/config_test.go
@@ -75,6 +75,26 @@ func TestLoadTencentExample(t *testing.T) {
 	}
 }
 
+func TestLoadDockerConfigStartsRoomIMBridgeWhenOutboxUsesMQ(t *testing.T) {
+	cfg, err := Load("../../configs/config.docker.yaml")
+	if err != nil {
+		t.Fatalf("Load docker config failed: %v", err)
+	}
+
+	if cfg.OutboxWorker.PublishMode != OutboxPublishModeMQ {
+		t.Fatalf("docker config should publish room outbox through MQ, got %q", cfg.OutboxWorker.PublishMode)
+	}
+	if !cfg.RocketMQ.RoomOutbox.Enabled {
+		t.Fatalf("docker config must enable room outbox MQ")
+	}
+	if !cfg.RocketMQ.RoomOutbox.TencentIMConsumerEnabled {
+		t.Fatalf("docker mq room outbox must start Tencent IM bridge consumer")
+	}
+	if !cfg.TencentIM.Enabled {
+		t.Fatalf("Tencent IM bridge consumer requires tencent_im.enabled")
+	}
+}
+
 func TestNormalizeRejectsUnknownOutboxRetryStrategy(t *testing.T) {
 	cfg := Default()
 	cfg.OutboxWorker.RetryStrategy = "exponential"