diff --git a/apps/iot/src/mocker/host_mocker.erl b/apps/iot/src/mocker/host_mocker.erl
index b101147..b09f42a 100644
--- a/apps/iot/src/mocker/host_mocker.erl
+++ b/apps/iot/src/mocker/host_mocker.erl
@@ -162,21 +162,7 @@ handle_info({publish, #{payload := Payload, qos := Qos, topic := FromTopic}},
             lager:debug("[host_mocker] get reply: ~p", [Json]),
             case Json of
                 #{<<"code">> := 1, <<"message">> := <<"ok">>} ->
-                    %% 建立到iot的会话
-                    Req = jiffy:encode(#{
-                        <<"method">> => <<"create_session">>,
-                        <<"params">> => #{
-                            <<"pub_key">> => PubKey
-                        }
-                    }, [force_utf8]),
-
-                    {ok, Ref} = iot_mqtt_publisher:publish(Topic, Req, 1),
-                    receive
-                        {ok, Ref, PacketId} ->
-                            lager:debug("[host_mocker] send create_session success, packet_id: ~p", [PacketId]);
-                        {error, Reason} ->
-                            lager:debug("[host_mocker] send create_session failed, reason: ~p", [Reason])
-                    end;
+                    self() ! create_session;
                 Info ->
                     Info
             end,
@@ -218,6 +204,8 @@ handle_info({publish, #{payload := Payload, qos := Qos, topic := FromTopic}},
                             lager:debug("[host_mocker] send reply failed, reason: ~p", [Reason])
                     end,
 
+                    self() ! create_session,
+
                     {noreply, State};
 
             #{<<"auth">> := false, <<"reply">> := #{<<"topic">> := Topic, <<"assoc">> := Assoc}} ->
@@ -252,9 +240,26 @@ handle_info({puback, Packet = #{packet_id := _PacketId}}, State = #state{}) ->
     lager:debug("[iot_mqtt_subscriber] receive puback packet: ~p", [Packet]),
     {noreply, State};
 
+%% 建立到iot的会话
+handle_info(create_session, State = #state{topic = Topic, pub_key = PubKey}) ->
+    Req = jiffy:encode(#{
+        <<"method">> => <<"create_session">>,
+        <<"params">> => #{
+            <<"pub_key">> => PubKey
+        }
+    }, [force_utf8]),
+
+    {ok, Ref} = iot_mqtt_publisher:publish(Topic, Req, 1),
+    receive
+        {ok, Ref, PacketId} ->
+            lager:debug("[host_mocker] send create_session success, packet_id: ~p", [PacketId]);
+        {error, Reason} ->
+            lager:debug("[host_mocker] send create_session failed, reason: ~p", [Reason])
+    end,
+    {noreply, State};
+
 %% 周期数据上传逻辑
 handle_info({timeout, _, data_ticker}, State = #state{aes = Aes, topic = Topic}) ->
-
     InfoList = [
         #{
             <<"service_name">> => <<"shuibiao">>,
@@ -417,7 +422,7 @@ code_change(_OldVsn, State = #state{}, _Extra) ->
 %%% Internal functions
 %%%===================================================================
 
-handle_command(8, Info, State) ->
-    lager:debug("[host_mocker] command is: ~p", [Info]),
+handle_command(Type, Info, State) ->
+    lager:debug("[host_mocker] command  type: ~p, is: ~p", [Type, Info]),
     State.