diff --git a/demos/speech_server/README.md b/demos/speech_server/README.md
index 10489e71..66bf11ca 100644
--- a/demos/speech_server/README.md
+++ b/demos/speech_server/README.md
@@ -15,8 +15,8 @@ You can choose one way from meduim and hard to install paddlespeech.
 
 ### 2. Prepare config File
 The configuration file can be found in `conf/application.yaml` .
-Among them, `engine_list` indicates the speech engine that will be included in the service to be started, in the format of <speech task>_<engine type>.
-At present, the speech tasks integrated by the service include: asr (speech recognition) and tts (speech synthesis).
+Among them, `engine_list` indicates the speech engine that will be included in the service to be started, in the format of speech task_engine type.
+At present, the speech tasks integrated by the service include: asr (speech recognition), tts (text to sppech) and cls (audio classification).
 Currently the engine type supports two forms: python and inference (Paddle Inference)
 
 
diff --git a/demos/speech_server/README_cn.md b/demos/speech_server/README_cn.md
index 2bd8af6c..687b51f1 100644
--- a/demos/speech_server/README_cn.md
+++ b/demos/speech_server/README_cn.md
@@ -17,7 +17,7 @@
 ### 2. 准备配置文件
 配置文件可参见 `conf/application.yaml` 。
 其中，`engine_list`表示即将启动的服务将会包含的语音引擎，格式为 <语音任务>_<引擎类型>。
-目前服务集成的语音任务有： asr(语音识别)、tts(语音合成)。
+目前服务集成的语音任务有： asr(语音识别)、tts(语音合成)以及cls(音频分类)。
 目前引擎类型支持两种形式：python 及 inference (Paddle Inference)