diff --git a/hiviewdfx/hilog/include/hilog/log.h b/hiviewdfx/hilog/include/hilog/log.h
index 26049d945ad80c33ee9d3f3d124b3951e4957d2c..7452137c280d212fc271cca2f31466f0dc11bd6f 100644
--- a/hiviewdfx/hilog/include/hilog/log.h
+++ b/hiviewdfx/hilog/include/hilog/log.h
@@ -246,6 +246,34 @@ bool OH_LOG_IsLoggable(unsigned int domain, const char *tag, LogLevel level);
  */
 #define OH_LOG_FATAL(type, ...) ((void)OH_LOG_Print((type), LOG_FATAL, LOG_DOMAIN, LOG_TAG, __VA_ARGS__))
 
+/**
+ * @brief Defines the function pointer type for the user-defined log processing function.
+ *
+ * @param type Indicates the log type. The type for third-party applications is defined by {@link LOG_APP}.
+ * @param level Indicates the log level, which can be <b>LOG_DEBUG</b>, <b>LOG_INFO</b>, <b>LOG_WARN</b>,
+ * <b>LOG_ERROR</b>, and <b>LOG_FATAL</b>.
+ * @param domain Indicates the service domain of logs. Its value is a hexadecimal integer ranging from 0x0 to 0xFFFF.
+ * @param tag Indicates the log tag, which is a string used to identify the class, file, or service behavior.
+ * @param msg Indicates the log message itself, which is a formatted log string.
+ * @since 11
+ */
+typedef void (*LogCallback)(const LogType type, const LogLevel level, const unsigned int domain, const char *tag,
+    const char *msg);
+
+/**
+ * @brief Set the user-defined log processing function.
+ *
+ * After calling this function, the callback function implemented by the user can receive all hilogs of the
+ * current process.
+ * Note that it will not change the default behavior of hilog logs of the current process, no matter whether this
+ * interface is called or not. \n
+ *
+ * @param callback Indicates the callback function implemented by the user. If you do not need to process hilog logs,
+ * you can transfer a null pointer.
+ * @since 11
+ */
+void OH_LOG_SetCallback(LogCallback callback);
+
 #ifdef __cplusplus
 }
 #endif