diff --git a/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/TieredMessageStore.java b/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/TieredMessageStore.java
index 9322891047..78b6ae3bcf 100644
--- a/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/TieredMessageStore.java
+++ b/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/TieredMessageStore.java
@@ -99,6 +99,11 @@ public class TieredMessageStore extends AbstractPluginMessageStore {
 
     public boolean viaTieredStorage(String topic, int queueId, long offset, int batchSize) {
         TieredMessageStoreConfig.TieredStorageLevel deepStorageLevel = storeConfig.getTieredStorageLevel();
+
+        if (deepStorageLevel.check(TieredMessageStoreConfig.TieredStorageLevel.FORCE)) {
+            return true;
+        }
+
         if (!deepStorageLevel.isEnable()) {
             return false;
         }
@@ -122,7 +127,7 @@ public class TieredMessageStore extends AbstractPluginMessageStore {
             && !next.checkInMemByConsumeOffset(topic, queueId, offset, batchSize)) {
             return true;
         }
-        return deepStorageLevel.check(TieredMessageStoreConfig.TieredStorageLevel.FORCE);
+        return false;
     }
 
     @Override
diff --git a/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/common/TieredMessageStoreConfig.java b/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/common/TieredMessageStoreConfig.java
index 2d43b9f6b5..8b44837b57 100644
--- a/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/common/TieredMessageStoreConfig.java
+++ b/tieredstore/src/main/java/org/apache/rocketmq/tieredstore/common/TieredMessageStoreConfig.java
@@ -24,10 +24,28 @@ public class TieredMessageStoreConfig {
     private String brokerName = localHostName();
     private String brokerClusterName = "DefaultCluster";
     private TieredStorageLevel tieredStorageLevel = TieredStorageLevel.NOT_IN_DISK;
+
+    /**
+     * All fetch requests are judged against this level first,
+     * and if the message cannot be read from the TiredMessageStore,
+     * these requests will still go to the next store for fallback processing.
+     */
     public enum TieredStorageLevel {
+        /**
+         * Disable tiered storage, all fetch request will be handled by default message store.
+         */
         DISABLE(0),
+        /**
+         * Only fetch request with offset not in disk will be handled by tiered storage.
+         */
         NOT_IN_DISK(1),
+        /**
+         * Only fetch request with offset not in memory(page cache) will be handled by tiered storage.
+         */
         NOT_IN_MEM(2),
+        /**
+         * All fetch request will be handled by tiered storage.
+         */
         FORCE(3);
 
         private final int value;