diff --git a/common/src/main/java/com/tencent/supersonic/common/jsqlparser/ReplaceService.java b/common/src/main/java/com/tencent/supersonic/common/jsqlparser/ReplaceService.java
index 0f4957eab..d7070331f 100644
--- a/common/src/main/java/com/tencent/supersonic/common/jsqlparser/ReplaceService.java
+++ b/common/src/main/java/com/tencent/supersonic/common/jsqlparser/ReplaceService.java
@@ -1,5 +1,6 @@
 package com.tencent.supersonic.common.jsqlparser;
 
+import com.tencent.supersonic.common.util.EditDistanceUtils;
 import com.tencent.supersonic.common.util.StringUtil;
 import lombok.Data;
 import lombok.extern.slf4j.Slf4j;
@@ -21,7 +22,7 @@ import java.util.stream.Collectors;
 @Data
 public class ReplaceService {
 
-    @Value("${s2.replace.column.threshold:0.4}")
+    @Value("${s2.replace.threshold:0.4}")
     private double replaceColumnThreshold;
 
     public void replaceFunction(Function expression, Map<String, String> fieldNameMap,
diff --git a/common/src/main/java/com/tencent/supersonic/common/jsqlparser/EditDistanceUtils.java b/common/src/main/java/com/tencent/supersonic/common/util/EditDistanceUtils.java
similarity index 96%
rename from common/src/main/java/com/tencent/supersonic/common/jsqlparser/EditDistanceUtils.java
rename to common/src/main/java/com/tencent/supersonic/common/util/EditDistanceUtils.java
index 9499db316..4f24586ae 100644
--- a/common/src/main/java/com/tencent/supersonic/common/jsqlparser/EditDistanceUtils.java
+++ b/common/src/main/java/com/tencent/supersonic/common/util/EditDistanceUtils.java
@@ -1,4 +1,4 @@
-package com.tencent.supersonic.common.jsqlparser;
+package com.tencent.supersonic.common.util;
 
 public class EditDistanceUtils {
 
diff --git a/common/src/test/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelperTest.java b/common/src/test/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelperTest.java
index c3a579558..f4f0c9220 100644
--- a/common/src/test/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelperTest.java
+++ b/common/src/test/java/com/tencent/supersonic/common/jsqlparser/SqlReplaceHelperTest.java
@@ -26,7 +26,7 @@ class SqlReplaceHelperTest {
     @BeforeEach
     public void setUp() {
         ReplaceService replaceService = new ReplaceService();
-        replaceService.setReplaceColumnThreshold(0.0);
+        replaceService.setReplaceColumnThreshold(0.4);
 
         // Mock the static method ContextUtils.getBean
         mockedContextUtils = mockStatic(ContextUtils.class);
@@ -82,9 +82,8 @@ class SqlReplaceHelperTest {
         replaceSql = SqlReplaceHelper.replaceValue(replaceSql, filedNameToValueMap2, false);
 
         Assert.assertEquals(
-                "SELECT 歌曲名 FROM 歌曲库 WHERE datediff('day', 发布日期, '2023-08-09') <= 1 AND 歌手名 = '周杰伦' "
-                        + "AND 歌手名 = '林俊杰' AND 歌手名 = '陈奕迅' AND 数据日期 = '2023-08-09' AND "
-                        + "歌曲发布时 = '2023-08-01' ORDER BY 播放量 DESC LIMIT 11",
+                "SELECT 歌曲名 FROM 歌曲库 WHERE datediff('day', 发布日期, '2023-08-09') <= 1 AND 歌手名 = '周杰伦' " +
+                        "AND 歌手名 = '林俊杰' AND 歌手名 = '陈' AND 数据日期 = '2023-08-09' AND 歌曲发布时 = '2023-08-01' ORDER BY 播放量 DESC LIMIT 11",
                 replaceSql);
 
         replaceSql = "select 歌曲名 from 歌曲库 where (datediff('day', 发布日期, '2023-08-09') <= 1 "
@@ -94,9 +93,8 @@ class SqlReplaceHelperTest {
         replaceSql = SqlReplaceHelper.replaceValue(replaceSql, filedNameToValueMap2, false);
 
         Assert.assertEquals(
-                "SELECT 歌曲名 FROM 歌曲库 WHERE (datediff('day', 发布日期, '2023-08-09') <= 1 AND 歌手名 = '周杰伦' "
-                        + "AND 歌手名 = '林俊杰' AND 歌手名 = '陈奕迅' AND 歌曲发布时 = '2023-08-01') "
-                        + "AND 数据日期 = '2023-08-09' ORDER BY 播放量 DESC LIMIT 11",
+                "SELECT 歌曲名 FROM 歌曲库 WHERE (datediff('day', 发布日期, '2023-08-09') <= 1 AND 歌手名 = '周杰伦' AND " +
+                        "歌手名 = '林俊杰' AND 歌手名 = '陈' AND 歌曲发布时 = '2023-08-01') AND 数据日期 = '2023-08-09' ORDER BY 播放量 DESC LIMIT 11",
                 replaceSql);
 
         replaceSql = "select 歌曲名 from 歌曲库 where (datediff('day', 发布日期, '2023-08-09') <= 1 "
@@ -107,10 +105,9 @@ class SqlReplaceHelperTest {
         replaceSql = SqlReplaceHelper.replaceValue(replaceSql, filedNameToValueMap2, false);
 
         Assert.assertEquals(
-                "SELECT 歌曲名 FROM 歌曲库 WHERE (datediff('day', 发布日期, '2023-08-09') <= 1 AND "
-                        + "歌手名 = '周杰伦' AND 歌手名 = '林俊杰' AND 歌手名 = '陈奕迅' AND 歌曲发布时 = '2023-08-01' "
-                        + "AND 播放量 < (SELECT min(播放量) FROM 歌曲库 WHERE 语种 = '英文')) AND 数据日期 = '2023-08-09' "
-                        + "ORDER BY 播放量 DESC LIMIT 11",
+                "SELECT 歌曲名 FROM 歌曲库 WHERE (datediff('day', 发布日期, '2023-08-09') <= 1 AND 歌手名 = '周杰伦' AND 歌手名 = '林俊杰' AND " +
+                        "歌手名 = '陈' AND 歌曲发布时 = '2023-08-01' AND 播放量 < (SELECT min(播放量) FROM 歌曲库 WHERE 语种 = '英文')) " +
+                        "AND 数据日期 = '2023-08-09' ORDER BY 播放量 DESC LIMIT 11",
                 replaceSql);
 
         Map<String, Map<String, String>> filedNameToValueMap3 = new HashMap<>();
diff --git a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/BaseMatchStrategy.java b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/BaseMatchStrategy.java
index 1fbc754d2..69150a879 100644
--- a/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/BaseMatchStrategy.java
+++ b/headless/chat/src/main/java/com/tencent/supersonic/headless/chat/mapper/BaseMatchStrategy.java
@@ -20,7 +20,7 @@ import java.util.Set;
 public abstract class BaseMatchStrategy<T extends MapResult> implements MatchStrategy<T> {
     @Override
     public Map<MatchText, List<T>> match(ChatQueryContext chatQueryContext, List<S2Term> terms,
-            Set<Long> detectDataSetIds) {
+                                         Set<Long> detectDataSetIds) {
         String text = chatQueryContext.getRequest().getQueryText();
         if (Objects.isNull(terms) || StringUtils.isEmpty(text)) {
             return null;
@@ -36,7 +36,7 @@ public abstract class BaseMatchStrategy<T extends MapResult> implements MatchStr
     }
 
     public List<T> detect(ChatQueryContext chatQueryContext, List<S2Term> terms,
-            Set<Long> detectDataSetIds) {
+                          Set<Long> detectDataSetIds) {
         throw new RuntimeException("Not implemented");
     }
 
@@ -64,6 +64,9 @@ public abstract class BaseMatchStrategy<T extends MapResult> implements MatchStr
     }
 
     public double getThreshold(Double threshold, Double minThreshold, MapModeEnum mapModeEnum) {
+        if (MapModeEnum.STRICT.equals(mapModeEnum)) {
+            return 1.0d;
+        }
         double decreaseAmount = (threshold - minThreshold) / 4;
         double divideThreshold = threshold - mapModeEnum.threshold * decreaseAmount;
         return divideThreshold >= minThreshold ? divideThreshold : minThreshold;