diff --git a/apps/iot/src/iot_mqtt_subscriber.erl b/apps/iot/src/iot_mqtt_subscriber.erl
index 7704662..4190cf8 100644
--- a/apps/iot/src/iot_mqtt_subscriber.erl
+++ b/apps/iot/src/iot_mqtt_subscriber.erl
@@ -76,8 +76,14 @@ init([]) ->
     case emqtt:start_link(Opts) of
         {ok, ConnPid} ->
             lager:debug("[iot_mqtt_subscriber] connect success, pid: ~p", [ConnPid]),
-            %% 快速启动避免阻塞iot_host_sup的启动
-            erlang:start_timer(0, self(), subscribe_ticker),
+            %% 监听和host相关的全部事件
+            {ok, _} = emqtt:connect(ConnPid),
+            Topics = [
+                {<<"$share/nodes_group//server/register">>, 1},
+                {<<"$share/nodes_group//host/+/upstream">>, 1}
+            ],
+            SubscribeResult = emqtt:subscribe(ConnPid, Topics),
+            lager:debug("[iot_mqtt_subscriber] subscribe result is: ~p", [SubscribeResult]),
 
             {ok, #state{conn_pid = ConnPid}};
         ignore ->
diff --git a/apps/iot/src/iot_sup.erl b/apps/iot/src/iot_sup.erl
index 6316e8b..94b1510 100644
--- a/apps/iot/src/iot_sup.erl
+++ b/apps/iot/src/iot_sup.erl
@@ -28,14 +28,14 @@ start_link() ->
 init([]) ->
     SupFlags = #{strategy => one_for_one, intensity => 1000, period => 3600},
     ChildSpecs = [
-        #{
-            id => 'iot_host_sup',
-            start => {'iot_host_sup', start_link, []},
-            restart => permanent,
-            shutdown => 2000,
-            type => supervisor,
-            modules => ['iot_host_sup']
-        },
+        %#{
+        %    id => 'iot_host_sup',
+        %    start => {'iot_host_sup', start_link, []},
+        %    restart => permanent,
+        %    shutdown => 2000,
+        %    type => supervisor,
+        %    modules => ['iot_host_sup']
+        %},
 
         #{
             id => 'iot_router_sup',