diff --git a/service/speechNlu/speech.go b/service/speechNlu/speech.go
index a1e07082feda06302cb4a7fb97f94de9c1920e30..6641ae9ba512e814abe76927235e84c582f4b941 100644
--- a/service/speechNlu/speech.go
+++ b/service/speechNlu/speech.go
@@ -161,7 +161,7 @@ func receiveMessage(conn *websocket.Conn, done chan struct{}, dataChan chan<- []
 		global.Logger.WithFields(logger.Fields{
 			"requestId":   requestId,
 			"origin-data": string(message),
-			"time":        time.Since(start).Seconds(),
+			"time":        fmt.Sprintf("%.3fs", time.Since(start).Seconds()),
 		}).Info("speech origin data")
 
 		//思必驰nlu回复