diff --git a/README.md b/README.md
index c2bcff8b9c38ff71903d7f3b55490870308d4c40..2482521509187dc40b1dab3e896120654175b637 100755
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ This module allows you to develop new test cases for new features, or modify exi
 
 ```
 developertest/
-├── aw                            # Static libraries of the test framework
+├── aw                           # Static libraries of the test framework
 │   ├── cxx                      # C++ libraries
 │   └── python                   # Python libraries
 ├── config                        # Test framework configuration
diff --git a/aw/python/distributed/distribute/distribute.py b/aw/python/distributed/distribute/distribute.py
index 7af86bad55fecd6d1573bedc71e78cf64308d33c..37b735f12055db1ba7302b49764dd7a25ae22b1b 100755
--- a/aw/python/distributed/distribute/distribute.py
+++ b/aw/python/distributed/distribute/distribute.py
@@ -186,19 +186,26 @@ class Distribute:
         return ipaddress[0]
 
     def _query_device_uuid(self, device):
+        """
+        1. Run the dumpsys DdmpDeviceMonitorService command to query the value of dev_nodeid.
+        2. The dump information reported by the soft bus. Local device info, should be placed first.
+        Note: The dump information may not comply with the JSON format.
+        """
         dumpsys_command = "dumpsys DdmpDeviceMonitorService"
         device_info = device.shell_with_output(dumpsys_command)
         if device_info == "":
             return ""
 
-        begin = device_info.find('{')
-        end = device_info.find('}')
-        if begin == -1 or end == -1:
+        begin = device_info.find("dev_nodeid")
+        if (begin == -1):
             return ""
 
-        local_device_info = device_info[begin:end + 1]
-        device_info_json = json.loads(local_device_info)
-        return device_info_json["dev_nodeid"]
+        end = device_info.find(",", begin)
+        if (end == -1):
+            return ""
+
+        dev_nodeid_info = device_info[begin : end].replace('"', "")
+        return dev_nodeid_info.split(":")[1]
 
     def _write_device_config(self, device_info, file_path):
         file_dir, file_name = os.path.split(file_path)