diff --git a/apps/iot/src/endpoint/iot_zd_endpoint.erl b/apps/iot/src/endpoint/iot_zd_endpoint.erl
index b941ef6..23806ba 100644
--- a/apps/iot/src/endpoint/iot_zd_endpoint.erl
+++ b/apps/iot/src/endpoint/iot_zd_endpoint.erl
@@ -36,10 +36,7 @@
     %% 定时器
     timer_ref :: undefined | reference(),
     %% 是否繁忙
-    is_busy = false :: boolean(),
-
-    %% 记录成功处理的消息数, 记日期和总数的映射关系
-    acc_num = #{}
+    is_busy = false :: boolean()
 }).
 
 %%%===================================================================
@@ -136,7 +133,7 @@ handle_event(info, fetch_next, connected, State = #state{postman_pid = PostmanPi
     end;
 
 %% 收到确认消息
-handle_event(info, {ack, AssocMessage}, StateName, State = #state{timer_ref = TimerRef, acc_num = AccNum, logger_pid = LoggerPid}) ->
+handle_event(info, {ack, AssocMessage}, StateName, State = #state{timer_ref = TimerRef, logger_pid = LoggerPid}) ->
     %% 记录日志信息
     iot_logger:write(LoggerPid, AssocMessage),
 
@@ -146,11 +143,10 @@ handle_event(info, {ack, AssocMessage}, StateName, State = #state{timer_ref = Ti
               end,
     is_reference(TimerRef) andalso erlang:cancel_timer(TimerRef),
 
-    Date = iot_util:date(),
-    Num = maps:get(Date, AccNum, 0),
-    NAccNum = AccNum#{Date => Num + 1},
+    Key = get_counter_key(iot_util:date()),
+    mnesia_counter:inc(Key),
 
-    {keep_state, State#state{timer_ref = undefined, acc_num = NAccNum, is_busy = false}, Actions};
+    {keep_state, State#state{timer_ref = undefined, is_busy = false}, Actions};
 
 %% 收到重发过期请求
 handle_event(info, {timeout, _, {repost_ticker, Body}}, connected, State = #state{postman_pid = PostmanPid}) ->
@@ -177,7 +173,10 @@ handle_event(info, {timeout, _, create_postman}, disconnected, State = #state{mq
     end;
 
 %% 获取当前统计信息
-handle_event({call, From}, get_stat, StateName, State = #state{acc_num = AccNum, iot_queue = Q}) ->
+handle_event({call, From}, get_stat, StateName, State = #state{iot_queue = Q}) ->
+    Key = get_counter_key(iot_util:date()),
+    AccNum = mnesia_counter:get_count(Key),
+
     Stat = #{
         <<"acc_num">> => AccNum,
         <<"queue_num">> => iot_queue:len(Q),
@@ -186,8 +185,11 @@ handle_event({call, From}, get_stat, StateName, State = #state{acc_num = AccNum,
     {keep_state, State, [{reply, From, Stat}]};
 
 %% 获取当前统计信息
-handle_event({call, From}, {get_num, Date}, _StateName, State = #state{acc_num = AccNum}) ->
-    {keep_state, State, [{reply, From, maps:get(Date, AccNum, 0)}]};
+handle_event({call, From}, {get_num, Date}, _StateName, State = #state{}) ->
+    Key = get_counter_key(Date),
+    AccNum = mnesia_counter:get_count(Key),
+
+    {keep_state, State, [{reply, From, AccNum}]};
 
 %% postman进程挂掉时，重新建立新的
 handle_event(info, {'EXIT', PostmanPid, Reason}, connected, State = #state{timer_ref = TimerRef, postman_pid = PostmanPid}) ->
@@ -265,4 +267,8 @@ format_data(LocationCode, DynamicLocationCode, Fields, Timestamp) when is_binary
     catch _:Reason ->
         lager:warning("[iot_zd_endpoint] location_code: ~p, format_data get error: ~p", [LocationCode, Reason]),
         error
-    end.
\ No newline at end of file
+    end.
+
+-spec get_counter_key(Date :: string()) -> string().
+get_counter_key(Date) when is_list(Date) ->
+    "iot_zd:" ++ Date.
\ No newline at end of file