diff --git a/demos/speech_server/README.md b/demos/speech_server/README.md
index ac5cc4b0..515abaf6 100644
--- a/demos/speech_server/README.md
+++ b/demos/speech_server/README.md
@@ -10,12 +10,13 @@ This demo is an implementation of starting the voice service and accessing the s
 ### 1. Installation
 see [installation](https://github.com/PaddlePaddle/PaddleSpeech/blob/develop/docs/source/install.md).
 
+It is recommended to use **paddlepaddle 2.2.1** or above.
 You can choose one way from easy, meduim and hard to install paddlespeech.
 
 ### 2. Prepare config File
 The configuration file contains the service-related configuration files and the model configuration related to the voice tasks contained in the service. They are all under the `conf` folder. 
 
-**Note: The configuration of `engine_backend` in `application.yaml` represents all speech tasks included in the started service. **
+**Note: The configuration of `engine_backend` in `application.yaml` represents all speech tasks included in the started service.**
 If the service you want to start contains only a certain speech task, then you need to comment out the speech tasks that do not need to be included. For example, if you only want to use the speech recognition (ASR) service, then you can comment out the speech synthesis (TTS) service, as in the following example:
 ```bash
 engine_backend:
@@ -23,7 +24,7 @@ engine_backend:
     #tts: 'conf/tts/tts.yaml'
 ```
 
-**Note: The configuration file of `engine_backend` in `application.yaml` needs to match the configuration type of `engine_type`. **
+**Note: The configuration file of `engine_backend` in `application.yaml` needs to match the configuration type of `engine_type`.**
 When the configuration file of `engine_backend` is `XXX.yaml`, the configuration type of `engine_type` needs to be set to `python`; when the configuration file of `engine_backend` is `XXX_pd.yaml`, the configuration of `engine_type` needs to be set type is `inference`;
 
 The input of  ASR client demo should be a WAV file(`.wav`), and the sample rate must be the same as the model.
diff --git a/demos/speech_server/README_cn.md b/demos/speech_server/README_cn.md
index f202a30c..05884fbd 100644
--- a/demos/speech_server/README_cn.md
+++ b/demos/speech_server/README_cn.md
@@ -10,8 +10,10 @@
 ### 1. 安装
 请看 [安装文档](https://github.com/PaddlePaddle/PaddleSpeech/blob/develop/docs/source/install.md).
 
+推荐使用 **paddlepaddle 2.2.1** 或以上版本。
 你可以从 easy，medium，hard 三中方式中选择一种方式安装 PaddleSpeech。
 
+
 ### 2. 准备配置文件
 配置文件包含服务相关的配置文件和服务中包含的语音任务相关的模型配置。 它们都在 `conf` 文件夹下。
 **注意：`application.yaml` 中 `engine_backend` 的配置表示启动的服务中包含的所有语音任务。**
diff --git a/demos/speech_server/conf/application.yaml b/demos/speech_server/conf/application.yaml
index 6dcae74a..aba33a51 100644
--- a/demos/speech_server/conf/application.yaml
+++ b/demos/speech_server/conf/application.yaml
@@ -3,7 +3,7 @@
 ##################################################################
 #                     SERVER SETTING                             #
 ##################################################################
-host: '127.0.0.1'
+host: 127.0.0.1
 port: 8090
 
 ##################################################################
diff --git a/paddlespeech/server/conf/application.yaml b/paddlespeech/server/conf/application.yaml
index 6dcae74a..aba33a51 100644
--- a/paddlespeech/server/conf/application.yaml
+++ b/paddlespeech/server/conf/application.yaml
@@ -3,7 +3,7 @@
 ##################################################################
 #                     SERVER SETTING                             #
 ##################################################################
-host: '127.0.0.1'
+host: 127.0.0.1
 port: 8090
 
 ##################################################################
diff --git a/tests/unit/server/change_yaml.py b/tests/unit/server/change_yaml.py
new file mode 100644
index 00000000..5a5d9ae0
--- /dev/null
+++ b/tests/unit/server/change_yaml.py
@@ -0,0 +1,114 @@
+#!/usr/bin/python
+import argparse
+import os
+
+import yaml
+
+
+def change_speech_yaml(yaml_name: str, device: str):
+    """Change the settings of the device under the voice task configuration file
+
+    Args:
+        yaml_name (str): asr or asr_pd or tts or tts_pd
+        cpu (bool): True means set device to "cpu"
+        model_type (dict): change model type
+    """
+    if "asr" in yaml_name:
+        dirpath = "./conf/asr/"
+    elif 'tts' in yaml_name:
+        dirpath = "./conf/tts/"
+    yamlfile = dirpath + yaml_name + ".yaml"
+    tmp_yamlfile = dirpath + yaml_name + "_tmp.yaml"
+    os.system("cp %s %s" % (yamlfile, tmp_yamlfile))
+
+    with open(tmp_yamlfile) as f, open(yamlfile, "w+", encoding="utf-8") as fw:
+        y = yaml.safe_load(f)
+        if device == 'cpu':
+            print("Set device: cpu")
+            if yaml_name == 'asr':
+                y['device'] = 'cpu'
+            elif yaml_name == 'asr_pd':
+                y['am_predictor_conf']['device'] = 'cpu'
+            elif yaml_name == 'tts':
+                y['device'] = 'cpu'
+            elif yaml_name == 'tts_pd':
+                y['am_predictor_conf']['device'] = 'cpu'
+                y['voc_predictor_conf']['device'] = 'cpu'
+        elif device == 'gpu':
+            print("Set device: gpu")
+            if yaml_name == 'asr':
+                y['device'] = 'gpu:0'
+            elif yaml_name == 'asr_pd':
+                y['am_predictor_conf']['device'] = 'gpu:0'
+            elif yaml_name == 'tts':
+                y['device'] = 'gpu:0'
+            elif yaml_name == 'tts_pd':
+                y['am_predictor_conf']['device'] = 'gpu:0'
+                y['voc_predictor_conf']['device'] = 'gpu:0'
+        else:
+            print("Please set correct device: cpu or gpu.")
+
+        print("The content of '%s': " % (yamlfile))
+        print(yaml.dump(y, default_flow_style=False, sort_keys=False))
+        yaml.dump(y, fw, allow_unicode=True)
+    os.system("rm %s" % (tmp_yamlfile))
+    print("Change %s successfully." % (yamlfile))
+
+
+def change_app_yaml(task: str, engine_type: str):
+    """Change the engine type and corresponding configuration file of the speech task in application.yaml
+
+    Args:
+        task (str):  asr or tts
+    """
+    yamlfile = "./conf/application.yaml"
+    tmp_yamlfile = "./conf/application_tmp.yaml"
+    os.system("cp %s %s" % (yamlfile, tmp_yamlfile))
+    with open(tmp_yamlfile) as f, open(yamlfile, "w+", encoding="utf-8") as fw:
+        y = yaml.safe_load(f)
+        y['engine_type'][task] = engine_type
+        path_list = ["./conf/", task, "/", task]
+        if engine_type == 'python':
+            path_list.append(".yaml")
+
+        elif engine_type == 'inference':
+            path_list.append("_pd.yaml")
+        y['engine_backend'][task] = ''.join(path_list)
+        print("The content of './conf/application.yaml': ")
+        print(yaml.dump(y, default_flow_style=False, sort_keys=False))
+        yaml.dump(y, fw, allow_unicode=True)
+    os.system("rm %s" % (tmp_yamlfile))
+    print("Change %s successfully." % (yamlfile))
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        '--change_task',
+        type=str,
+        default=None,
+        help='Change task',
+        choices=[
+            'app-asr-python',
+            'app-asr-inference',
+            'app-tts-python',
+            'app-tts-inference',
+            'speech-asr-cpu',
+            'speech-asr-gpu',
+            'speech-asr_pd-cpu',
+            'speech-asr_pd-gpu',
+            'speech-tts-cpu',
+            'speech-tts-gpu',
+            'speech-tts_pd-cpu',
+            'speech-tts_pd-gpu',
+        ],
+        required=True)
+    args = parser.parse_args()
+
+    types = args.change_task.split("-")
+    if types[0] == "app":
+        change_app_yaml(types[1], types[2])
+    elif types[0] == "speech":
+        change_speech_yaml(types[1], types[2])
+    else:
+        print("Error change task, please check change_task.")
diff --git a/tests/unit/server/conf/application.yaml b/tests/unit/server/conf/application.yaml
new file mode 100644
index 00000000..aba33a51
--- /dev/null
+++ b/tests/unit/server/conf/application.yaml
@@ -0,0 +1,27 @@
+# This is the parameter configuration file for PaddleSpeech Serving.
+
+##################################################################
+#                     SERVER SETTING                             #
+##################################################################
+host: 127.0.0.1
+port: 8090
+
+##################################################################
+#                     CONFIG FILE                                #
+##################################################################
+# add engine backend type (Options: asr, tts) and config file here.
+# Adding a speech task to engine_backend means starting the service.
+engine_backend:
+    asr: 'conf/asr/asr.yaml'
+    tts: 'conf/tts/tts.yaml'
+
+# The engine_type of speech task needs to keep the same type as the config file of speech task.
+# E.g: The engine_type of asr is 'python', the engine_backend of asr is 'XX/asr.yaml'
+# E.g: The engine_type of asr is 'inference', the engine_backend of asr is 'XX/asr_pd.yaml'
+#
+# add engine type (Options: python, inference) 
+engine_type:
+    asr: 'python'
+    tts: 'python'
+
+
diff --git a/tests/unit/server/conf/asr/asr.yaml b/tests/unit/server/conf/asr/asr.yaml
new file mode 100644
index 00000000..a6743b77
--- /dev/null
+++ b/tests/unit/server/conf/asr/asr.yaml
@@ -0,0 +1,8 @@
+model: 'conformer_wenetspeech'
+lang: 'zh'
+sample_rate: 16000
+cfg_path: # [optional]
+ckpt_path: # [optional]
+decode_method: 'attention_rescoring'
+force_yes: True
+device:  # set 'gpu:id' or 'cpu'
diff --git a/tests/unit/server/conf/asr/asr_pd.yaml b/tests/unit/server/conf/asr/asr_pd.yaml
new file mode 100644
index 00000000..4c415ac7
--- /dev/null
+++ b/tests/unit/server/conf/asr/asr_pd.yaml
@@ -0,0 +1,26 @@
+# This is the parameter configuration file for ASR server.
+# These are the static models that support paddle inference.
+
+##################################################################
+#                  ACOUSTIC MODEL SETTING                        #
+# am choices=['deepspeech2offline_aishell'] TODO
+##################################################################
+model_type: 'deepspeech2offline_aishell'
+am_model: # the pdmodel file of am static model [optional]
+am_params:  # the pdiparams file of am static model [optional]
+lang: 'zh'
+sample_rate: 16000
+cfg_path: 
+decode_method: 
+force_yes: True
+
+am_predictor_conf:
+  device:  # set 'gpu:id' or 'cpu'
+  switch_ir_optim: True
+  glog_info: False  # True -> print glog
+  summary: True  # False -> do not show predictor config
+
+
+##################################################################
+#                            OTHERS                              #
+##################################################################
diff --git a/tests/unit/server/conf/tts/tts.yaml b/tests/unit/server/conf/tts/tts.yaml
new file mode 100644
index 00000000..19207f0b
--- /dev/null
+++ b/tests/unit/server/conf/tts/tts.yaml
@@ -0,0 +1,32 @@
+# This is the parameter configuration file for TTS server.
+
+##################################################################
+#                  ACOUSTIC MODEL SETTING                        #
+# am choices=['speedyspeech_csmsc', 'fastspeech2_csmsc',
+#             'fastspeech2_ljspeech', 'fastspeech2_aishell3',
+#             'fastspeech2_vctk']
+##################################################################
+am: 'fastspeech2_csmsc'   
+am_config: 
+am_ckpt: 
+am_stat: 
+phones_dict: 
+tones_dict: 
+speaker_dict: 
+spk_id: 0
+
+##################################################################
+#                     VOCODER SETTING                            #
+# voc choices=['pwgan_csmsc', 'pwgan_ljspeech', 'pwgan_aishell3',
+#              'pwgan_vctk', 'mb_melgan_csmsc']
+##################################################################
+voc: 'pwgan_csmsc'
+voc_config: 
+voc_ckpt: 
+voc_stat: 
+
+##################################################################
+#                            OTHERS                              #
+##################################################################
+lang: 'zh'
+device:  # set 'gpu:id' or 'cpu'
diff --git a/tests/unit/server/conf/tts/tts_pd.yaml b/tests/unit/server/conf/tts/tts_pd.yaml
new file mode 100644
index 00000000..e27b9665
--- /dev/null
+++ b/tests/unit/server/conf/tts/tts_pd.yaml
@@ -0,0 +1,42 @@
+# This is the parameter configuration file for TTS server.
+# These are the static models that support paddle inference.
+
+##################################################################
+#                  ACOUSTIC MODEL SETTING                        #
+# am choices=['speedyspeech_csmsc', 'fastspeech2_csmsc']
+##################################################################
+am: 'fastspeech2_csmsc'   
+am_model: # the pdmodel file of your am static model (XX.pdmodel)
+am_params: # the pdiparams file of your am static model (XX.pdipparams)
+am_sample_rate: 24000
+phones_dict: 
+tones_dict: 
+speaker_dict: 
+spk_id: 0
+
+am_predictor_conf:
+  device:  # set 'gpu:id' or 'cpu'
+  switch_ir_optim: True
+  glog_info: False # True -> print glog
+  summary: True  # False -> do not show predictor config
+
+
+##################################################################
+#                     VOCODER SETTING                            #
+# voc choices=['pwgan_csmsc', 'mb_melgan_csmsc','hifigan_csmsc']
+##################################################################
+voc: 'pwgan_csmsc'
+voc_model: # the pdmodel file of your vocoder static model (XX.pdmodel)
+voc_params: # the pdiparams file of your vocoder static model (XX.pdipparams)
+voc_sample_rate: 24000
+
+voc_predictor_conf:
+  device:  # set 'gpu:id' or 'cpu'  
+  switch_ir_optim: True  
+  glog_info: False # True -> print glog
+  summary: True  # False -> do not show predictor config
+
+##################################################################
+#                            OTHERS                              #
+##################################################################
+lang: 'zh'
diff --git a/tests/unit/server/test_server_client.sh b/tests/unit/server/test_server_client.sh
new file mode 100644
index 00000000..8f6a1368
--- /dev/null
+++ b/tests/unit/server/test_server_client.sh
@@ -0,0 +1,184 @@
+#!/bin/bash
+
+StartService(){
+    # Start service 
+    paddlespeech_server start --config_file $config_file 1>>log/server.log 2>>log/server.log.wf &
+    echo $! > pid
+
+    start_num=$(cat log/server.log.wf | grep "INFO:     Uvicorn running on http://" -c)
+    flag="normal"
+    while [[ $start_num -lt $target_start_num && $flag == "normal" ]]
+    do
+        start_num=$(cat log/server.log.wf | grep "INFO:     Uvicorn running on http://" -c)
+        # start service failed
+        if [ $(cat log/server.log.wf | grep -i "error" -c) -gt $error_time ];then
+            echo "Service started failed."  | tee -a ./log/test_result.log
+            error_time=$(cat log/server.log.wf | grep -i "error" -c)
+            flag="unnormal"
+        fi
+    done
+}
+
+ClientTest(){
+    # Client test
+    # test asr client
+    paddlespeech_client asr --server_ip $server_ip --port $port --input ./zh.wav 
+    ((test_times+=1))
+    paddlespeech_client asr --server_ip $server_ip --port $port --input ./zh.wav 
+    ((test_times+=1))
+
+    # test tts client
+    paddlespeech_client tts --server_ip $server_ip --port $port --input "您好，欢迎使用百度飞桨语音合成服务。" --output output.wav 
+    ((test_times+=1))
+    paddlespeech_client tts --server_ip $server_ip --port $port --input "您好，欢迎使用百度飞桨语音合成服务。" --output output.wav 
+    ((test_times+=1))  
+}
+
+GetTestResult() {
+    # Determine if the test was successful
+    response_success_time=$(cat log/server.log | grep "200 OK" -c)
+    if (( $response_success_time == $test_times )) ; then
+        echo "Testing successfully. The service configuration is: asr engine type: $1; tts engine type: $1; device: $2."  | tee -a ./log/test_result.log
+    else
+        echo "Testing failed. The service configuration is: asr engine type: $1; tts engine type: $1; device: $2." | tee -a ./log/test_result.log
+    fi
+    test_times=$response_success_time
+}
+
+
+mkdir -p log
+rm -rf log/server.log.wf 
+rm -rf log/server.log
+rm -rf log/test_result.log
+
+config_file=./conf/application.yaml
+server_ip=$(cat $config_file | grep "host" | awk -F " " '{print $2}')
+port=$(cat $config_file | grep "port" | awk '/port:/ {print $2}')
+
+echo "Sevice ip: $server_ip" | tee ./log/test_result.log
+echo "Sevice port: $port" | tee -a ./log/test_result.log
+
+# whether a process is listening on $port
+pid=`lsof -i :"$port"|grep -v "PID" | awk '{print $2}'`
+if [ "$pid" != "" ]; then
+    echo "The port: $port is occupied, please change another port"
+    exit
+fi
+
+# download test audios for ASR client
+wget -c https://paddlespeech.bj.bcebos.com/PaddleAudio/zh.wav https://paddlespeech.bj.bcebos.com/PaddleAudio/en.wav
+
+
+target_start_num=0  # the number of start service
+test_times=0  # The number of client test
+error_time=0  # The number of error occurrences in the startup failure server.log.wf file
+
+# start server: asr engine type: python; tts engine type: python; device: gpu
+echo "Start the service: asr engine type: python; tts engine type: python; device: gpu"  | tee -a ./log/test_result.log
+((target_start_num+=1))
+StartService
+
+if [[ $start_num -eq $target_start_num && $flag == "normal" ]]; then
+    echo "Service started successfully."  | tee -a ./log/test_result.log
+    ClientTest
+    echo "This round of testing is over."  | tee -a ./log/test_result.log
+
+    GetTestResult python gpu
+else
+    echo "Service failed to start, no client test."
+    target_start_num=$start_num  
+
+fi
+
+kill -9 `cat pid`
+rm -rf pid
+sleep 2s
+echo "**************************************************************************************" | tee -a ./log/test_result.log
+
+
+
+# start server: asr engine type: python; tts engine type: python; device: cpu
+python change_yaml.py --change_task speech-asr-cpu    # change asr.yaml device: cpu
+python change_yaml.py --change_task speech-tts-cpu    # change tts.yaml device: cpu
+
+echo "Start the service: asr engine type: python; tts engine type: python; device: cpu"  | tee -a ./log/test_result.log
+((target_start_num+=1))
+StartService
+
+if [[ $start_num -eq $target_start_num && $flag == "normal" ]]; then
+    echo "Service started successfully."  | tee -a ./log/test_result.log
+    ClientTest
+    echo "This round of testing is over."  | tee -a ./log/test_result.log
+
+    GetTestResult python cpu
+else
+    echo "Service failed to start, no client test."
+    target_start_num=$start_num  
+
+fi
+
+kill -9 `cat pid`
+rm -rf pid
+sleep 2s
+echo "**************************************************************************************" | tee -a ./log/test_result.log
+
+
+# start server: asr engine type: inference; tts engine type: inference; device: gpu
+python change_yaml.py --change_task app-asr-inference    # change application.yaml, asr engine_type: inference; asr engine_backend: asr_pd.yaml
+python change_yaml.py --change_task app-tts-inference    # change application.yaml, tts engine_type: inference; tts engine_backend: tts_pd.yaml
+
+echo "Start the service: asr engine type: inference; tts engine type: inference; device: gpu"  | tee -a ./log/test_result.log
+((target_start_num+=1))
+StartService
+
+if [[ $start_num -eq $target_start_num && $flag == "normal" ]]; then
+    echo "Service started successfully."  | tee -a ./log/test_result.log
+    ClientTest
+    echo "This round of testing is over."  | tee -a ./log/test_result.log
+
+    GetTestResult inference gpu
+else
+    echo "Service failed to start, no client test."
+    target_start_num=$start_num  
+
+fi
+
+kill -9 `cat pid`
+rm -rf pid
+sleep 2s
+echo "**************************************************************************************" | tee -a ./log/test_result.log
+
+
+# start server: asr engine type: inference; tts engine type: inference; device: cpu
+python change_yaml.py --change_task speech-asr_pd-cpu    # change asr_pd.yaml device: cpu
+python change_yaml.py --change_task speech-tts_pd-cpu    # change tts_pd.yaml device: cpu
+
+echo "start the service: asr engine type: inference; tts engine type: inference; device: cpu"  | tee -a ./log/test_result.log
+((target_start_num+=1))
+StartService
+
+if [[ $start_num -eq $target_start_num && $flag == "normal" ]]; then
+    echo "Service started successfully."  | tee -a ./log/test_result.log
+    ClientTest
+    echo "This round of testing is over."  | tee -a ./log/test_result.log
+
+    GetTestResult inference cpu
+else
+    echo "Service failed to start, no client test."
+    target_start_num=$start_num  
+    
+fi
+
+kill -9 `cat pid`
+rm -rf pid
+sleep 2s
+echo "**************************************************************************************" | tee -a ./log/test_result.log
+
+echo "All tests completed."  | tee -a ./log/test_result.log
+
+# sohw all the test results
+echo "***************** Here are all the test results ********************"
+cat ./log/test_result.log
+
+# Restoring conf is the same as demos/speech_server
+cp ../../../demos/speech_server/conf/ ./ -rf
\ No newline at end of file