diff --git a/apps/efka/src/channel/ws_channel.erl b/apps/efka/src/channel/ws_channel.erl
index 839a62d..38ea1e5 100644
--- a/apps/efka/src/channel/ws_channel.erl
+++ b/apps/efka/src/channel/ws_channel.erl
@@ -193,8 +193,13 @@ handle_request(#{<<"method">> := <<"stream_chunk">>,
 
 %% 数据项
 handle_request(#{<<"method">> := <<"metric_data">>,
-    <<"params">> := #{<<"route_key">> := RouteKey, <<"metric">> := Metric}}, State = #state{service_pid = ServicePid, is_registered = true}) ->
-    efka_service:metric_data(ServicePid, RouteKey, Metric),
+    <<"params">> := #{<<"route_key">> := RouteKey, <<"metric">> := Metric0}}, State = #state{service_pid = ServicePid, is_registered = true}) ->
+    case map_metric(Metric0) of
+        {ok, Metric} ->
+            efka_service:metric_data(ServicePid, RouteKey, Metric);
+        error ->
+            lager:debug("[ws_channel] metric_data get invalid metric: ~p", Metric0)
+    end,
     {ok, State}.
 
 -spec json_result(Id :: integer(), Result :: term()) -> binary().
@@ -236,3 +241,15 @@ search_stream_id(StreamPid, StreamMap) when is_pid(StreamPid), is_map(StreamMap)
         [StreamId|_] ->
             {ok, StreamId}
     end.
+
+-spec map_metric(Metric :: any()) -> {ok, binary()} | error.
+map_metric(Metric) when is_binary(Metric) ->
+    Metric;
+map_metric(Metric) when is_map(Metric) orelse is_list(Metric) ->
+    jiffy:encode(Metric, [force_utf8]);
+map_metric(Metric) when is_integer(Metric) ->
+    integer_to_binary(Metric);
+map_metric(Metric) when is_float(Metric) ->
+    erlang:float_to_binary(Metric, [compact, {decimals, 10}]);
+map_metric(_) ->
+    error.
\ No newline at end of file