diff --git a/docs/en/changes/changes.md b/docs/en/changes/changes.md
index eaf520c883..0067618669 100644
--- a/docs/en/changes/changes.md
+++ b/docs/en/changes/changes.md
@@ -5,6 +5,7 @@
 
 #### OAP Server
 
+* Fix LAL test query api.
 
 #### UI
 
diff --git a/oap-server/analyzer/log-analyzer/src/main/java/org/apache/skywalking/oap/log/analyzer/dsl/spec/extractor/ExtractorSpec.java b/oap-server/analyzer/log-analyzer/src/main/java/org/apache/skywalking/oap/log/analyzer/dsl/spec/extractor/ExtractorSpec.java
index 2a52cd64e1..6c229f6f69 100644
--- a/oap-server/analyzer/log-analyzer/src/main/java/org/apache/skywalking/oap/log/analyzer/dsl/spec/extractor/ExtractorSpec.java
+++ b/oap-server/analyzer/log-analyzer/src/main/java/org/apache/skywalking/oap/log/analyzer/dsl/spec/extractor/ExtractorSpec.java
@@ -162,7 +162,6 @@ public class ExtractorSpec extends AbstractSpec {
                          .collect(Collectors.toList())
                    )
         );
-        BINDING.get().log(logData);
     }
 
     @SuppressWarnings("unused")
diff --git a/oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/resolver/LogTestQuery.java b/oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/resolver/LogTestQuery.java
index 943294deb6..bc57bb0a46 100644
--- a/oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/resolver/LogTestQuery.java
+++ b/oap-server/server-query-plugin/query-graphql-plugin/src/main/java/org/apache/skywalking/oap/query/graphql/resolver/LogTestQuery.java
@@ -18,6 +18,7 @@
 
 package org.apache.skywalking.oap.query.graphql.resolver;
 
+import com.google.protobuf.InvalidProtocolBufferException;
 import graphql.kickstart.tools.GraphQLQueryResolver;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -26,6 +27,7 @@ import java.util.concurrent.atomic.AtomicReference;
 import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
 import org.apache.skywalking.apm.network.logging.v3.LogData;
+import org.apache.skywalking.apm.network.logging.v3.LogTags;
 import org.apache.skywalking.oap.log.analyzer.dsl.Binding;
 import org.apache.skywalking.oap.log.analyzer.dsl.DSL;
 import org.apache.skywalking.oap.log.analyzer.module.LogAnalyzerModule;
@@ -88,7 +90,7 @@ public class LogTestQuery implements GraphQLQueryResolver {
             }
             l.setServiceId(it.getServiceId());
             if (isNotBlank(it.getServiceInstanceId())) {
-                String name = IDManager.ServiceInstanceID.analysisId(it.getServiceId()).getName();
+                String name = IDManager.ServiceInstanceID.analysisId(it.getServiceInstanceId()).getName();
                 l.setServiceInstanceName(name);
             }
             l.setServiceInstanceId(it.getServiceInstanceId());
@@ -101,11 +103,18 @@ public class LogTestQuery implements GraphQLQueryResolver {
             l.setTimestamp(it.getTimestamp());
             l.setContentType(it.getContentType());
             l.setContent(it.getContent());
-            final List<KeyValue> tags = it.getTags()
-                                          .stream()
-                                          .map(tag -> new KeyValue(tag.getKey(), tag.getValue()))
-                                          .collect(Collectors.toList());
-            l.getTags().addAll(tags);
+            if (it.getTagsRawData() != null) {
+                try {
+                    final List<KeyValue> tags = LogTags.parseFrom(it.getTagsRawData())
+                                                       .getDataList()
+                                                       .stream()
+                                                       .map(tag -> new KeyValue(tag.getKey(), tag.getValue()))
+                                                       .collect(Collectors.toList());
+                    l.getTags().addAll(tags);
+                } catch (InvalidProtocolBufferException e) {
+                    // ignore
+                }
+            }
 
             builder.log(l);
         });