diff --git a/src/host/iot_host.erl b/src/host/iot_host.erl
index 25c7a8e..b156aba 100644
--- a/src/host/iot_host.erl
+++ b/src/host/iot_host.erl
@@ -25,7 +25,7 @@
 -export([start_link/2, get_name/1, get_alias_name/1, get_pid/1, handle/2, activate/2]).
 -export([get_metric/1, get_status/1, kill/1]).
 %% 通讯相关
--export([pub/4, attach_channel/2, command/2]).
+-export([pub/4, attach_channel/2]).
 -export([deploy_container/3, start_container/2, stop_container/2, remove_container/2, kill_container/2, config_container/3, get_containers/1, await_reply/3]).
 -export([heartbeat/1]).
 
@@ -144,10 +144,6 @@ await_reply(Pid, Ref, Timeout) when is_pid(Pid), is_reference(Ref), is_integer(T
 pub(Pid, Topic, Qos, Content) when is_pid(Pid), is_binary(Topic), is_integer(Qos), is_binary(Content) ->
     gen_statem:call(Pid, {pub, Topic, Qos, Content}).
 
--spec command(Pid :: pid(), Command :: message_pb:'CastFrame.Command'()) -> ok | {error, Reason :: any()}.
-command(Pid, Command) when is_pid(Pid) ->
-    gen_statem:call(Pid, {command, Command}).
-
 -spec heartbeat(Pid :: pid()) -> no_return().
 heartbeat(undefined) ->
     ok;
@@ -247,19 +243,6 @@ handle_event({call, From}, {pub, Topic, Qos, Content}, ?STATE_ACTIVATED, State =
             {keep_state, State, [{reply, From, {error, <<"主机离线，发送失败"/utf8>>}}]}
     end;
 
-%% 发送指令时
-handle_event({call, From}, {command, Command}, ?STATE_ACTIVATED, State = #state{uuid = UUID, channel_pid = ChannelPid, has_session = HasSession}) ->
-    case HasSession andalso is_pid(ChannelPid) of
-        true ->
-            logger:debug("[iot_host] host: ~p, command: ~p", [UUID, Command]),
-            %% 通过websocket发送请求
-            ssl_channel:command(ChannelPid, Command),
-            {keep_state, State, [{reply, From, ok}]};
-        false ->
-            logger:debug("[iot_host] host: ~p, command: ~p, invalid state: ~p", [UUID, Command, state_map(State)]),
-            {keep_state, State, [{reply, From, {error, <<"主机离线，发送指令失败"/utf8>>}}]}
-    end;
-
 %% 激活主机
 handle_event({call, From}, {activate, true}, _, State = #state{uuid = UUID, channel_pid = ChannelPid}) ->
     case is_pid(ChannelPid) of