diff --git a/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ClientAbilities.java b/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ClientAbilities.java
index 533f4ecdd..3a5a796ce 100644
--- a/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ClientAbilities.java
+++ b/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ClientAbilities.java
@@ -40,8 +40,8 @@ public class ClientAbilities extends AbstractAbilityRegistry {
          *       <code>DATA_COMPRESSION("compression", 1)</code>
          *   This field can be used outside, and the offset should be unique.
          *
-         *   And then you need to declare the offset of the flag bit of this ability in the ability table, you can:
-         *       <code>supportedAbilities.put(AbilityKey.DATA_COMPRESSION, true);</code> means that is the first bit from left to right in the table.
+         *   And then you need to declare whether turn on in the ability table, you can:
+         *       <code>supportedAbilities.put(AbilityKey.DATA_COMPRESSION, true);</code> means that current client support AbilityKey.DATA_COMPRESSION.
          *
          */
         // put ability here, which you want current client supports
diff --git a/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ServerAbilities.java b/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ServerAbilities.java
index ca4597a4f..66a6fbfa0 100644
--- a/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ServerAbilities.java
+++ b/api/src/main/java/com/alibaba/nacos/api/ability/register/impl/ServerAbilities.java
@@ -40,8 +40,8 @@ public class ServerAbilities extends AbstractAbilityRegistry {
          *       <code>DATA_COMPRESSION("compression", 1)</code>
          *   This field can be used outside, and the offset should be unique.
          *
-         *   And then you need to declare the offset of the flag bit of this ability in the ability table, you can:
-         *       <code>supportedAbilities.put(AbilityKey.DATA_COMPRESSION, true);</code> means that is the first bit from left to right in the table.
+         *   And then you need to declare whether turn on in the ability table, you can:
+         *       <code>supportedAbilities.put(AbilityKey.DATA_COMPRESSION, true);</code> means that current client support AbilityKey.DATA_COMPRESSION.
          *
          */
         // put ability here, which you want current server supports