diff --git a/libpurgeablemem/interfaces/kits/c/purgeable_memory.h b/libpurgeablemem/interfaces/kits/c/purgeable_memory.h
index 6d87f517e461582397f9c5dfaddb6c73ec76920d..0e65d927db05779abe39530039314a3d1323c774 100644
--- a/libpurgeablemem/interfaces/kits/c/purgeable_memory.h
+++ b/libpurgeablemem/interfaces/kits/c/purgeable_memory.h
@@ -15,6 +15,7 @@
 
 /**
  * @addtogroup memory
+ * @{
  *
  * @brief provides memory management capabilities
  *
@@ -32,10 +33,12 @@
  * provides features include create, begin read ,end read, begin write, end write, rebuild, and so on.
  * when using, it is necessary to link libpurgeable_memory_ndk.z.so
  *
+ * @library libpurgeablemem.z.so
+ * @syscap SystemCapability.Kernel.Memory
  * @since 10
  * @version 1.0
  */
-
+/** @} */
 #ifndef OHOS_UTILS_MEMORY_LIBPURGEABLEMEM_C_INCLUDE_PURGEABLE_MEMORY_H
 #define OHOS_UTILS_MEMORY_LIBPURGEABLEMEM_C_INCLUDE_PURGEABLE_MEMORY_H