diff --git a/chat/api/src/main/java/com/tencent/supersonic/chat/api/pojo/enums/MemoryReviewResult.java b/chat/api/src/main/java/com/tencent/supersonic/chat/api/pojo/enums/MemoryReviewResult.java
index df706ab76..57bfcc27e 100644
--- a/chat/api/src/main/java/com/tencent/supersonic/chat/api/pojo/enums/MemoryReviewResult.java
+++ b/chat/api/src/main/java/com/tencent/supersonic/chat/api/pojo/enums/MemoryReviewResult.java
@@ -1,9 +1,21 @@
 package com.tencent.supersonic.chat.api.pojo.enums;
 
 
+import com.tencent.supersonic.common.pojo.exception.InvalidArgumentException;
+import org.apache.commons.lang3.StringUtils;
+
 public enum MemoryReviewResult {
 
     POSITIVE,
-    NEGATIVE
+    NEGATIVE;
 
+    public static MemoryReviewResult getMemoryReviewResult(String value) {
+        String validValue = StringUtils.trim(value);
+        for (MemoryReviewResult reviewRet : MemoryReviewResult.values()) {
+            if (StringUtils.equalsIgnoreCase(reviewRet.name(), validValue)) {
+                return reviewRet;
+            }
+        }
+        throw new InvalidArgumentException("Invalid MemoryReviewResult type:[" + value + "]");
+    }
 }
diff --git a/chat/server/src/main/java/com/tencent/supersonic/chat/server/memory/MemoryReviewTask.java b/chat/server/src/main/java/com/tencent/supersonic/chat/server/memory/MemoryReviewTask.java
index 326201424..f9802a5d6 100644
--- a/chat/server/src/main/java/com/tencent/supersonic/chat/server/memory/MemoryReviewTask.java
+++ b/chat/server/src/main/java/com/tencent/supersonic/chat/server/memory/MemoryReviewTask.java
@@ -67,7 +67,7 @@ public class MemoryReviewTask {
 
                             Matcher matcher = OUTPUT_PATTERN.matcher(response);
                             if (matcher.find()) {
-                                m.setLlmReviewRet(MemoryReviewResult.valueOf(matcher.group(1)));
+                                m.setLlmReviewRet(MemoryReviewResult.getMemoryReviewResult(matcher.group(1)));
                                 m.setLlmReviewCmt(matcher.group(2));
                                 // directly enable memory if the LLM determines it positive
                                 if (MemoryReviewResult.POSITIVE.equals(m.getLlmReviewRet())) {