diff --git a/apps/efka/include/efka.hrl b/apps/efka/include/efka.hrl
index ba176e7..472758f 100644
--- a/apps/efka/include/efka.hrl
+++ b/apps/efka/include/efka.hrl
@@ -2,7 +2,7 @@
 %%% @author anlicheng
 %%% @copyright (C) 2025, <COMPANY>
 %%% @doc
-%%%
+%%% 扩展部分, 1: 支持基于topic的pub/sub机制; 2. 基于target的单点通讯和广播
 %%% @end
 %%% Created : 21. 4月 2025 17:28
 %%%-------------------------------------------------------------------
@@ -11,6 +11,7 @@
 %% 消息体类型
 -define(PACKET_REQUEST, 16#01).
 -define(PACKET_RESPONSE, 16#02).
+
 %% 服务器端推送消息
 -define(PACKET_PUBLISH, 16#03).
 -define(PACKET_PUBLISH_RESPONSE, 16#04).
@@ -25,6 +26,7 @@
 -define(METHOD_INFORM, 16#04).
 -define(METHOD_FEEDBACK_STEP, 16#05).
 -define(METHOD_FEEDBACK_RESULT, 16#06).
+
 -define(METHOD_EVENT, 16#07).
 %% ai识别的事件上报
 -define(METHOD_AI_EVENT, 16#08).
@@ -33,7 +35,6 @@
 -define(EVENT_DEVICE, 16#01).
 %% 主机的相关事件
 -define(EVENT_HOST, 16#02).
-
 %% ai相关的事件
 -define(EVENT_AI, 16#03).
 
diff --git a/apps/efka/include/efka_tables.hrl b/apps/efka/include/efka_tables.hrl
index f31ce01..349b217 100644
--- a/apps/efka/include/efka_tables.hrl
+++ b/apps/efka/include/efka_tables.hrl
@@ -19,4 +19,20 @@
     metrics :: binary(),
     %% 状态： 0: 停止, 1: 运行中
     status = 0
+}).
+
+%% 数据缓存
+-record(micro_data, {
+    id = 0 :: integer(),
+    device_uuid :: binary(),
+    service_name :: binary(),
+    at :: integer(),
+    tags :: map(),
+    fields :: binary()
+}).
+
+%% id生成器
+-record(id_generator, {
+    id,
+    value = 1
 }).
\ No newline at end of file
diff --git a/apps/efka/src/efka_agent.erl b/apps/efka/src/efka_agent.erl
index 706f479..687a65b 100644
--- a/apps/efka/src/efka_agent.erl
+++ b/apps/efka/src/efka_agent.erl
@@ -2,18 +2,21 @@
 %%% @author anlicheng
 %%% @copyright (C) 2025, <COMPANY>
 %%% @doc
-%%%
+%%% 需要支持 云服务离线时候的数据暂存
 %%% @end
 %%% Created : 06. 5月 2025 00:01
 %%%-------------------------------------------------------------------
 -module(efka_agent).
 -author("anlicheng").
 -include("message_pb.hrl").
+-include("efka_tables.hrl").
+-include("efka.hrl").
 
 -behaviour(gen_server).
 
 %% API
 -export([start_link/0]).
+-export([data/5]).
 
 %% gen_server callbacks
 -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
@@ -38,6 +41,10 @@
 %%% API
 %%%===================================================================
 
+%% 发送数据
+data(ServiceName, DeviceUUID, At, Tags, Fields) when is_binary(ServiceName), is_binary(DeviceUUID), is_integer(At), is_map(Tags), is_binary(Fields) ->
+    gen_server:cast(?SERVER, {data, ServiceName, DeviceUUID, At, Tags, Fields}).
+
 %% @doc Spawns the server and registers the local name (unique)
 -spec(start_link() ->
     {ok, Pid :: pid()} | ignore | {error, Reason :: term()}).
@@ -77,6 +84,19 @@ handle_call(_Request, _From, State = #state{}) ->
     {noreply, NewState :: #state{}} |
     {noreply, NewState :: #state{}, timeout() | hibernate} |
     {stop, Reason :: term(), NewState :: #state{}}).
+handle_cast({data, ServiceName, DeviceUUID, At, Tags, Fields}, State = #state{status = Status}) ->
+    ok = data_model:insert(#micro_data{
+        device_uuid = DeviceUUID,
+        service_name = ServiceName,
+        at = At,
+        tags = Tags,
+        fields = Fields
+    }),
+    %% 触发下一次的数据处理
+    Status =:= ?STATE_ACTIVATED andalso fetch_next(),
+
+    {noreply, State};
+
 handle_cast(_Request, State = #state{}) ->
     {noreply, State}.
 
@@ -170,6 +190,28 @@ handle_info({server_push_message, PacketId, <<16:8, Directive>>}, State = #state
 
     {noreply, State};
 
+handle_info(fetch_next, State = #state{status = ?STATE_ACTIVATED, transport_pid = TransportPid}) ->
+    case data_model:fetch_next() of
+        error ->
+            ok;
+        {ok, #micro_data{device_uuid = DeviceUUID, service_name = ServiceName, at = At, tags = Tags, fields = Fields}} ->
+            DataPacket = message_pb:encode_msg(#data{
+                device_uuid = DeviceUUID,
+                service_name = ServiceName,
+                at = At,
+                tags = Tags,
+                fields = Fields
+            }),
+            efka_transport:send(TransportPid, ?METHOD_DATA, DataPacket),
+            %% 触发下一次
+            fetch_next()
+    end,
+    {noreply, State};
+
+%% 其他情况下，忽略该消息
+handle_info(fetch_next, State) ->
+    {noreply, State};
+
 %% transport进程退出
 handle_info({'EXIT', TransportPid, Reason}, State = #state{transport_pid = TransportPid}) ->
     efka_logger:debug("[efka_agent] transport pid: ~p, exit with reason: ~p", [TransportPid, Reason]),
@@ -200,3 +242,6 @@ code_change(_OldVsn, State = #state{}, _Extra) ->
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
+
+fetch_next() ->
+    self() ! fetch_next.
\ No newline at end of file
diff --git a/apps/efka/src/mnesia/data_model.erl b/apps/efka/src/mnesia/data_model.erl
new file mode 100644
index 0000000..cea0035
--- /dev/null
+++ b/apps/efka/src/mnesia/data_model.erl
@@ -0,0 +1,54 @@
+%%%-------------------------------------------------------------------
+%%% @author aresei
+%%% @copyright (C) 2023, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 04. 7月 2023 12:31
+%%%-------------------------------------------------------------------
+-module(data_model).
+-author("aresei").
+-include("efka_tables.hrl").
+-include_lib("stdlib/include/qlc.hrl").
+
+-define(TAB, micro_data).
+
+%% API
+-export([create_table/0]).
+-export([insert/1, get_all_data/0, fetch_next/0]).
+
+create_table() ->
+    %% id生成器
+    mnesia:create_table(micro_data, [
+        {attributes, record_info(fields, micro_data)},
+        {record_name, micro_data},
+        {disc_copies, [node()]},
+        {type, bag}
+    ]).
+
+-spec insert(MicroData0 :: #micro_data{}) -> ok | {error, Reason :: any()}.
+insert(MicroData0 = #micro_data{}) ->
+    MicroData = MicroData0#micro_data{id = id_model:next_id(?TAB)},
+    case mnesia:transaction(fun() -> mnesia:write(?TAB, MicroData, write) end) of
+        {'atomic', ok} ->
+            ok;
+        {'aborted', Reason} ->
+            {error, Reason}
+    end.
+
+fetch_next() ->
+    ok.
+
+-spec get_all_data() -> [#micro_data{}].
+get_all_data() ->
+    Fun = fun() ->
+        Q = qlc:q([E || E <- mnesia:table(?TAB)]),
+        qlc:e(Q)
+          end,
+
+    case mnesia:transaction(Fun) of
+        {'atomic', Res} ->
+            Res;
+        {'aborted', _} ->
+            []
+    end.
\ No newline at end of file
diff --git a/apps/efka/src/mnesia/id_model.erl b/apps/efka/src/mnesia/id_model.erl
new file mode 100644
index 0000000..9dc5c3a
--- /dev/null
+++ b/apps/efka/src/mnesia/id_model.erl
@@ -0,0 +1,25 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 06. 5月 2025 10:32
+%%%-------------------------------------------------------------------
+-module(id_model).
+-author("anlicheng").
+
+%% API
+-export([create_table/0, next_id/1]).
+
+create_table() ->
+    %% id生成器
+    mnesia:create_table(id_generator, [
+        {attributes, record_info(fields, id_generator)},
+        {record_name, id_generator},
+        {disc_copies, [node()]},
+        {type, ordered_set}
+    ]).
+
+next_id(Tab) when is_atom(Tab) ->
+    mnesia:dirty_update_counter(id_generator, Tab, 1).
\ No newline at end of file