diff --git a/en/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md b/en/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md
index faef4e1f18d7c20d8f0b2036a466a23c19af611b..e6c0316c22cf0f0988f032218e92543c9f7b3acc 100644
--- a/en/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md
+++ b/en/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md
@@ -65,7 +65,7 @@ Constraints on the event domain, event name, and parameter
 
 - Parameter naming rules:
   - The name must start with a letter and can contain only uppercase letters, digits, and underscores (_).
-  - The name contains 1 to 32 characters.
+  - The name contains 1 to 48 characters.
   - The number of parameters in an event domain cannot exceed 128.
 
 
diff --git a/zh-cn/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md b/zh-cn/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md
index 322c396c87a87e78b414df5bf2ceede82fe45b28..175b49816ea59a74ed28651cdca2b607fc8f1c7d 100644
--- a/zh-cn/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md
+++ b/zh-cn/device-dev/subsystems/subsys-dfx-hisysevent-logging-config.md
@@ -66,7 +66,7 @@
 
 - 参数命名规则：
   - 字母开头，且只能由大写字母/数字/下划线组成；
-  - 字符串长度取值范围1~32；
+  - 字符串长度取值范围1~48；
   - 单个事件名称内包含的参数的个数不能超过128个。