diff --git a/common/src/main/java/com/tencent/supersonic/common/pojo/SysParameter.java b/common/src/main/java/com/tencent/supersonic/common/pojo/SysParameter.java
index 1ed91eddf..34979e691 100644
--- a/common/src/main/java/com/tencent/supersonic/common/pojo/SysParameter.java
+++ b/common/src/main/java/com/tencent/supersonic/common/pojo/SysParameter.java
@@ -4,6 +4,7 @@ import com.google.common.collect.Lists;
 import lombok.Data;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.util.CollectionUtils;
+
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
@@ -57,12 +58,14 @@ public class SysParameter {
         parameters.add(new Parameter("metric.dimension.threshold", "0.3",
                 "指标名、维度名文本相似度阈值", "文本片段和匹配到的指标、维度名计算出来的编辑距离阈值, 若超出该阈值, 则舍弃",
                 "number", "Mapper相关配置"));
-        parameters.add(new Parameter("metric.dimension.min.threshold", "0.3",
-                "指标名、维度名最小文本相似度阈值",
-                "最小编辑距离阈值, 在FuzzyNameMapper中, 如果上面设定的编辑距离阈值的1/2大于该最小编辑距离, 则取上面设定阈值的1/2作为阈值, 否则取该阈值",
+        parameters.add(new Parameter("metric.dimension.min.threshold", "0.25",
+                "指标名、维度名最小文本相似度阈值", "指标名、维度名相似度阈值在动态调整中的最低值",
                 "number", "Mapper相关配置"));
         parameters.add(new Parameter("dimension.value.threshold", "0.5",
-                "维度值最小文本相似度阈值", "文本片段和匹配到的维度值计算出来的编辑距离阈值, 若超出该阈值, 则舍弃",
+                "维度值文本相似度阈值", "文本片段和匹配到的维度值计算出来的编辑距离阈值, 若超出该阈值, 则舍弃",
+                "number", "Mapper相关配置"));
+        parameters.add(new Parameter("dimension.value.min.threshold", "0.3",
+                "维度值最小文本相似度阈值", "维度值相似度阈值在动态调整中的最低值",
                 "number", "Mapper相关配置"));
 
         //embedding mapper config
@@ -76,6 +79,8 @@ public class SysParameter {
                 "批量向量召回文本返回结果个数", "每个文本进行向量语义召回的文本结果个数", "number", "Mapper相关配置"));
         parameters.add(new Parameter("embedding.mapper.threshold",
                 "0.99", "向量召回相似度阈值", "相似度小于该阈值的则舍弃", "number", "Mapper相关配置"));
+        parameters.add(new Parameter("embedding.mapper.min.threshold",
+                "0.9", "向量召回最小相似度阈值", "向量召回相似度阈值在动态调整中的最低值", "number", "Mapper相关配置"));
 
         //parser config
         Parameter s2SQLParameter = new Parameter("s2SQL.generation", "TWO_PASS_AUTO_COT",
diff --git a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/enums/MapModeEnum.java b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/enums/MapModeEnum.java
index 7551dd202..33e0aa156 100644
--- a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/enums/MapModeEnum.java
+++ b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/enums/MapModeEnum.java
@@ -1,7 +1,12 @@
 package com.tencent.supersonic.headless.api.pojo.enums;
 
 public enum MapModeEnum {
-    STRICT,
-    MODERATE,
-    LOOSE;
+    STRICT(0),
+    MODERATE(2),
+    LOOSE(4);
+    public int threshold;
+
+    MapModeEnum(Integer threshold) {
+        this.threshold = threshold;
+    }
 }
diff --git a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryMapReq.java b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryMapReq.java
index 2280e2f77..6b53b06bf 100644
--- a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryMapReq.java
+++ b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryMapReq.java
@@ -14,5 +14,5 @@ public class QueryMapReq {
     private List<String> dataSetNames;
     private User user;
     private Integer topN = 10;
-    private MapModeEnum mapModeEnum;
+    private MapModeEnum mapModeEnum = MapModeEnum.STRICT;
 }
diff --git a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryReq.java b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryReq.java
index dea2fc0cf..6ee1eb61b 100644
--- a/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryReq.java
+++ b/headless/api/src/main/java/com/tencent/supersonic/headless/api/pojo/request/QueryReq.java
@@ -4,6 +4,7 @@ import com.google.common.collect.Sets;
 import com.tencent.supersonic.auth.api.authentication.pojo.User;
 import com.tencent.supersonic.common.pojo.enums.Text2SQLType;
 import com.tencent.supersonic.headless.api.pojo.SchemaMapInfo;
+import com.tencent.supersonic.headless.api.pojo.enums.MapModeEnum;
 import lombok.Data;
 
 import java.util.Set;
@@ -17,5 +18,6 @@ public class QueryReq {
     private QueryFilters queryFilters;
     private boolean saveAnswer = true;
     private Text2SQLType text2SQLType = Text2SQLType.RULE_AND_LLM;
+    private MapModeEnum mapModeEnum = MapModeEnum.STRICT;
     private SchemaMapInfo mapInfo = new SchemaMapInfo();
 }
diff --git a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/BaseMatchStrategy.java b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/BaseMatchStrategy.java
index 2a2978aea..3bf8151c1 100644
--- a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/BaseMatchStrategy.java
+++ b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/BaseMatchStrategy.java
@@ -1,6 +1,7 @@
 package com.tencent.supersonic.headless.core.chat.mapper;
 
 
+import com.tencent.supersonic.headless.api.pojo.enums.MapModeEnum;
 import com.tencent.supersonic.headless.api.pojo.response.S2Term;
 import com.tencent.supersonic.headless.core.pojo.QueryContext;
 import com.tencent.supersonic.headless.core.chat.knowledge.helper.NatureHelper;
@@ -9,6 +10,7 @@ import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -29,7 +31,7 @@ public abstract class BaseMatchStrategy<T> implements MatchStrategy<T> {
 
     @Override
     public Map<MatchText, List<T>> match(QueryContext queryContext, List<S2Term> terms,
-            Set<Long> detectDataSetIds) {
+                                         Set<Long> detectDataSetIds) {
         String text = queryContext.getQueryText();
         if (Objects.isNull(terms) || StringUtils.isEmpty(text)) {
             return null;
@@ -69,8 +71,7 @@ public abstract class BaseMatchStrategy<T> implements MatchStrategy<T> {
     }
 
     protected void detectByBatch(QueryContext queryContext, Set<T> results, Set<Long> detectDataSetIds,
-            Set<String> detectSegments) {
-        return;
+                                 Set<String> detectSegments) {
     }
 
     public Map<Integer, Integer> getRegOffsetToLength(List<S2Term> terms) {
@@ -152,6 +153,11 @@ public abstract class BaseMatchStrategy<T> implements MatchStrategy<T> {
     public abstract String getMapKey(T a);
 
     public abstract void detectByStep(QueryContext queryContext, Set<T> existResults, Set<Long> detectDataSetIds,
-            String detectSegment, int offset);
+                                      String detectSegment, int offset);
 
+    public double getThreshold(Double threshold, Double minThreshold, MapModeEnum mapModeEnum) {
+        double decreaseAmount = (threshold - minThreshold) / 4;
+        double divideThreshold = threshold - mapModeEnum.threshold * decreaseAmount;
+        return divideThreshold >= minThreshold ? divideThreshold : minThreshold;
+    }
 }
diff --git a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/DatabaseMatchStrategy.java b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/DatabaseMatchStrategy.java
index 550654384..965a29d28 100644
--- a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/DatabaseMatchStrategy.java
+++ b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/DatabaseMatchStrategy.java
@@ -56,7 +56,7 @@ public class DatabaseMatchStrategy extends BaseMatchStrategy<DatabaseMapResult>
     }
 
     public void detectByStep(QueryContext queryContext, Set<DatabaseMapResult> existResults, Set<Long> detectDataSetIds,
-            String detectSegment, int offset) {
+                             String detectSegment, int offset) {
         if (StringUtils.isBlank(detectSegment)) {
             return;
         }
@@ -94,22 +94,20 @@ public class DatabaseMatchStrategy extends BaseMatchStrategy<DatabaseMapResult>
     }
 
     private Double getThreshold(QueryContext queryContext) {
-        Double metricDimensionThresholdConfig = optimizationConfig.getMetricDimensionThresholdConfig();
-        Double metricDimensionMinThresholdConfig = optimizationConfig.getMetricDimensionMinThresholdConfig();
+
+        Double threshold = optimizationConfig.getMetricDimensionThresholdConfig();
+        Double minThreshold = optimizationConfig.getMetricDimensionMinThresholdConfig();
 
         Map<Long, List<SchemaElementMatch>> modelElementMatches = queryContext.getMapInfo().getDataSetElementMatches();
 
         boolean existElement = modelElementMatches.entrySet().stream().anyMatch(entry -> entry.getValue().size() >= 1);
 
         if (!existElement) {
-            double halfThreshold = metricDimensionThresholdConfig / 2;
-
-            metricDimensionThresholdConfig = halfThreshold >= metricDimensionMinThresholdConfig ? halfThreshold
-                    : metricDimensionMinThresholdConfig;
-            log.info("ModelElementMatches:{} , not exist Element metricDimensionThresholdConfig reduce by half:{}",
-                    modelElementMatches, metricDimensionThresholdConfig);
+            threshold = threshold / 2;
+            log.info("ModelElementMatches:{},not exist Element threshold reduce by half:{}",
+                    modelElementMatches, threshold);
         }
-        return metricDimensionThresholdConfig;
+        return getThreshold(threshold, minThreshold, queryContext.getMapModeEnum());
     }
 
     private Map<String, Set<SchemaElement>> getNameToItems(List<SchemaElement> models) {
diff --git a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/EmbeddingMatchStrategy.java b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/EmbeddingMatchStrategy.java
index 3fbe843be..40a8ddcf4 100644
--- a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/EmbeddingMatchStrategy.java
+++ b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/EmbeddingMatchStrategy.java
@@ -68,16 +68,18 @@ public class EmbeddingMatchStrategy extends BaseMatchStrategy<EmbeddingResult> {
                 optimizationConfig.getEmbeddingMapperBatch());
 
         for (List<String> queryTextsSub : queryTextsSubList) {
-            detectByQueryTextsSub(results, detectDataSetIds, queryTextsSub, queryContext.getModelIdToDataSetIds());
+            detectByQueryTextsSub(results, detectDataSetIds, queryTextsSub, queryContext);
         }
     }
 
     private void detectByQueryTextsSub(Set<EmbeddingResult> results, Set<Long> detectDataSetIds,
-                                       List<String> queryTextsSub, Map<Long, List<Long>> modelIdToDataSetIds) {
-        int embeddingNumber = optimizationConfig.getEmbeddingMapperNumber();
-        Double distance = optimizationConfig.getEmbeddingMapperThreshold();
-        // step1. build query params
+                                       List<String> queryTextsSub, QueryContext queryContext) {
 
+        Map<Long, List<Long>> modelIdToDataSetIds = queryContext.getModelIdToDataSetIds();
+        int embeddingNumber = optimizationConfig.getEmbeddingMapperNumber();
+        double threshold = getThreshold(optimizationConfig.getEmbeddingMapperThreshold(),
+                optimizationConfig.getEmbeddingMapperMinThreshold(), queryContext.getMapModeEnum());
+        // step1. build query params
         RetrieveQuery retrieveQuery = RetrieveQuery.builder().queryTextsList(queryTextsSub).build();
         // step2. retrieveQuery by detectSegment
 
@@ -94,7 +96,7 @@ public class EmbeddingMatchStrategy extends BaseMatchStrategy<EmbeddingResult> {
                     if (CollectionUtils.isNotEmpty(retrievals)) {
                         retrievals.removeIf(retrieval -> {
                             if (!retrieveQueryResult.getQuery().contains(retrieval.getQuery())) {
-                                return retrieval.getDistance() > 1 - distance.doubleValue();
+                                return retrieval.getDistance() > 1 - threshold;
                             }
                             return false;
                         });
diff --git a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/HanlpDictMatchStrategy.java b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/HanlpDictMatchStrategy.java
index 7aab4964d..44184ee78 100644
--- a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/HanlpDictMatchStrategy.java
+++ b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/HanlpDictMatchStrategy.java
@@ -11,6 +11,7 @@ import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+
 import java.util.HashMap;
 import java.util.LinkedHashSet;
 import java.util.List;
@@ -39,7 +40,7 @@ public class HanlpDictMatchStrategy extends BaseMatchStrategy<HanlpMapResult> {
 
     @Override
     public Map<MatchText, List<HanlpMapResult>> match(QueryContext queryContext, List<S2Term> terms,
-            Set<Long> detectDataSetIds) {
+                                                      Set<Long> detectDataSetIds) {
         String text = queryContext.getQueryText();
         if (Objects.isNull(terms) || StringUtils.isEmpty(text)) {
             return null;
@@ -61,7 +62,7 @@ public class HanlpDictMatchStrategy extends BaseMatchStrategy<HanlpMapResult> {
     }
 
     public void detectByStep(QueryContext queryContext, Set<HanlpMapResult> existResults, Set<Long> detectDataSetIds,
-            String detectSegment, int offset) {
+                             String detectSegment, int offset) {
         // step1. pre search
         Integer oneDetectionMaxSize = optimizationConfig.getOneDetectionMaxSize();
         LinkedHashSet<HanlpMapResult> hanlpMapResults = knowledgeService.prefixSearch(detectSegment,
@@ -84,7 +85,7 @@ public class HanlpDictMatchStrategy extends BaseMatchStrategy<HanlpMapResult> {
         // step4. filter by similarity
         hanlpMapResults = hanlpMapResults.stream()
                 .filter(term -> mapperHelper.getSimilarity(detectSegment, term.getName())
-                        >= mapperHelper.getThresholdMatch(term.getNatures()))
+                        >= getThresholdMatch(term.getNatures(), queryContext))
                 .filter(term -> CollectionUtils.isNotEmpty(term.getNatures()))
                 .collect(Collectors.toCollection(LinkedHashSet::new));
 
@@ -118,4 +119,15 @@ public class HanlpDictMatchStrategy extends BaseMatchStrategy<HanlpMapResult> {
     public String getMapKey(HanlpMapResult a) {
         return a.getName() + Constants.UNDERLINE + String.join(Constants.UNDERLINE, a.getNatures());
     }
+
+    public double getThresholdMatch(List<String> natures, QueryContext queryContext) {
+        Double threshold = optimizationConfig.getMetricDimensionThresholdConfig();
+        Double minThreshold = optimizationConfig.getMetricDimensionMinThresholdConfig();
+        if (mapperHelper.existDimensionValues(natures)) {
+            threshold = optimizationConfig.getDimensionValueThresholdConfig();
+            minThreshold = optimizationConfig.getDimensionValueMinThresholdConfig();
+        }
+        return getThreshold(threshold, minThreshold, queryContext.getMapModeEnum());
+
+    }
 }
diff --git a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/MapperHelper.java b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/MapperHelper.java
index 2717bc346..36c686bda 100644
--- a/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/MapperHelper.java
+++ b/headless/core/src/main/java/com/tencent/supersonic/headless/core/chat/mapper/MapperHelper.java
@@ -45,13 +45,6 @@ public class MapperHelper {
         return index;
     }
 
-    public double getThresholdMatch(List<String> natures) {
-        if (existDimensionValues(natures)) {
-            return optimizationConfig.getDimensionValueThresholdConfig();
-        }
-        return optimizationConfig.getMetricDimensionThresholdConfig();
-    }
-
     /***
      * exist dimension values
      * @param natures
diff --git a/headless/core/src/main/java/com/tencent/supersonic/headless/core/config/OptimizationConfig.java b/headless/core/src/main/java/com/tencent/supersonic/headless/core/config/OptimizationConfig.java
index 2a78fbc4a..9ce610b16 100644
--- a/headless/core/src/main/java/com/tencent/supersonic/headless/core/config/OptimizationConfig.java
+++ b/headless/core/src/main/java/com/tencent/supersonic/headless/core/config/OptimizationConfig.java
@@ -26,6 +26,9 @@ public class OptimizationConfig {
     @Value("${metric.dimension.threshold:0.3}")
     private Double metricDimensionThresholdConfig;
 
+    @Value("${dimension.value.min.threshold:0.2}")
+    private Double dimensionValueMinThresholdConfig;
+
     @Value("${dimension.value.threshold:0.5}")
     private Double dimensionValueThresholdConfig;
 
@@ -52,6 +55,9 @@ public class OptimizationConfig {
     @Value("${embedding.mapper.round.number:10}")
     private int embeddingMapperRoundNumber;
 
+    @Value("${embedding.mapper.min.threshold:0.6}")
+    private Double embeddingMapperMinThreshold;
+
     @Value("${embedding.mapper.threshold:0.99}")
     private Double embeddingMapperThreshold;
 
@@ -95,6 +101,10 @@ public class OptimizationConfig {
         return convertValue("metric.dimension.threshold", Double.class, metricDimensionThresholdConfig);
     }
 
+    public Double getDimensionValueMinThresholdConfig() {
+        return convertValue("dimension.value.min.threshold", Double.class, dimensionValueMinThresholdConfig);
+    }
+
     public Double getDimensionValueThresholdConfig() {
         return convertValue("dimension.value.threshold", Double.class, dimensionValueThresholdConfig);
     }
@@ -135,6 +145,10 @@ public class OptimizationConfig {
         return convertValue("embedding.mapper.round.number", Integer.class, embeddingMapperRoundNumber);
     }
 
+    public Double getEmbeddingMapperMinThreshold() {
+        return convertValue("embedding.mapper.min.threshold", Double.class, embeddingMapperMinThreshold);
+    }
+
     public Double getEmbeddingMapperThreshold() {
         return convertValue("embedding.mapper.threshold", Double.class, embeddingMapperThreshold);
     }
diff --git a/headless/core/src/main/java/com/tencent/supersonic/headless/core/pojo/QueryContext.java b/headless/core/src/main/java/com/tencent/supersonic/headless/core/pojo/QueryContext.java
index c151bfd77..58d442071 100644
--- a/headless/core/src/main/java/com/tencent/supersonic/headless/core/pojo/QueryContext.java
+++ b/headless/core/src/main/java/com/tencent/supersonic/headless/core/pojo/QueryContext.java
@@ -6,6 +6,7 @@ import com.tencent.supersonic.common.pojo.enums.Text2SQLType;
 import com.tencent.supersonic.common.util.ContextUtils;
 import com.tencent.supersonic.headless.api.pojo.SchemaMapInfo;
 import com.tencent.supersonic.headless.api.pojo.SemanticSchema;
+import com.tencent.supersonic.headless.api.pojo.enums.MapModeEnum;
 import com.tencent.supersonic.headless.api.pojo.request.QueryFilters;
 import com.tencent.supersonic.headless.core.chat.query.SemanticQuery;
 import com.tencent.supersonic.headless.core.config.OptimizationConfig;
@@ -37,6 +38,7 @@ public class QueryContext {
     private QueryFilters queryFilters;
     private List<SemanticQuery> candidateQueries = new ArrayList<>();
     private SchemaMapInfo mapInfo = new SchemaMapInfo();
+    private MapModeEnum mapModeEnum = MapModeEnum.STRICT;
     @JsonIgnore
     private SemanticSchema semanticSchema;
 
diff --git a/headless/server/src/main/java/com/tencent/supersonic/headless/server/rest/api/MetaDiscoveryApiController.java b/headless/server/src/main/java/com/tencent/supersonic/headless/server/rest/api/MetaDiscoveryApiController.java
index 6dab347f6..01e944486 100644
--- a/headless/server/src/main/java/com/tencent/supersonic/headless/server/rest/api/MetaDiscoveryApiController.java
+++ b/headless/server/src/main/java/com/tencent/supersonic/headless/server/rest/api/MetaDiscoveryApiController.java
@@ -15,7 +15,7 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 @RestController
-@RequestMapping("/api/semantic/query")
+@RequestMapping("/api/semantic/meta")
 @Slf4j
 public class MetaDiscoveryApiController {
 
diff --git a/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/ChatQueryServiceImpl.java b/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/ChatQueryServiceImpl.java
index 081ca3fcc..292815d66 100644
--- a/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/ChatQueryServiceImpl.java
+++ b/headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/ChatQueryServiceImpl.java
@@ -179,6 +179,7 @@ public class ChatQueryServiceImpl implements ChatQueryService {
                 .mapInfo(new SchemaMapInfo())
                 .modelIdToDataSetIds(modelIdToDataSetIds)
                 .text2SQLType(queryReq.getText2SQLType())
+                .mapModeEnum(queryReq.getMapModeEnum())
                 .build();
         BeanUtils.copyProperties(queryReq, queryCtx);
         return queryCtx;