diff --git a/iot-common/iot-third/src/main/java/com/qiuguo/iot/third/nlp/AliYunXingChen.java b/iot-common/iot-third/src/main/java/com/qiuguo/iot/third/nlp/AliYunXingChen.java
index ab8f217..0e8232d 100644
--- a/iot-common/iot-third/src/main/java/com/qiuguo/iot/third/nlp/AliYunXingChen.java
+++ b/iot-common/iot-third/src/main/java/com/qiuguo/iot/third/nlp/AliYunXingChen.java
@@ -100,7 +100,7 @@ public class AliYunXingChen {
             Flowable<ChatResult> response = api.streamOut(chatReqParams);
             RecordMessage recordMessage = new RecordMessage();
             response.blockingForEach(m -> {
-                String v = m.getChoices().get(0).getMessages().get(0).getContent().replaceAll(recordMessage.getMsg(), "");
+                String v = m.getChoices().get(0).getMessages().get(0).getContent().substring(recordMessage.getMsg().length());
                 onNext.sendMessage(v);
                 recordMessage.setMsg(m.getChoices().get(0).getMessages().get(0).getContent());
                 if("stop".equals(m.getChoices().get(0).getStopReason())){