diff --git a/backend/services/bug-management/src/main/java/io/metersphere/bug/dto/request/BugEditRequest.java b/backend/services/bug-management/src/main/java/io/metersphere/bug/dto/request/BugEditRequest.java
index 1d8162f372..63f4ab81e7 100644
--- a/backend/services/bug-management/src/main/java/io/metersphere/bug/dto/request/BugEditRequest.java
+++ b/backend/services/bug-management/src/main/java/io/metersphere/bug/dto/request/BugEditRequest.java
@@ -54,4 +54,7 @@ public class BugEditRequest {
 
     @Schema(description = "关联附件集合, 文件ID")
     private List<String> linkFileIds;
+
+    @Schema(description = "用例ID")
+    private String caseId;
 }
diff --git a/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugMapper.xml b/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugMapper.xml
index fe13a514ba..be181191df 100644
--- a/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugMapper.xml
+++ b/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugMapper.xml
@@ -378,18 +378,20 @@
     </sql>
 
     <sql id="queryWhereConditionByProvider">
-        <if test="request.projectId != null">
+        <if test="request.projectId != null and request.projectId != ''">
             and b.project_id = #{request.projectId}
         </if>
-        <if test="request.keyword != null">
+        <if test="request.keyword != null and request.keyword != ''">
             and (
             b.title like concat('%', #{request.keyword},'%')
             or b.num like concat('%', #{request.keyword},'%')
+            or b.tags like concat('%', #{request.keyword},'%')
             )
         </if>
         <include refid="filter"/>
         <include refid="combine">
             <property name="condition" value="request.combine"/>
+            <property name="searchMode" value="request.searchMode"/>
         </include>
     </sql>
 </mapper>
diff --git a/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugRelateCaseMapper.xml b/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugRelateCaseMapper.xml
index 94a2e41836..815aabdd26 100644
--- a/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugRelateCaseMapper.xml
+++ b/backend/services/bug-management/src/main/java/io/metersphere/bug/mapper/ExtBugRelateCaseMapper.xml
@@ -91,10 +91,10 @@
     </select>
 
     <sql id="queryWhereConditionByProvider">
-        <if test="request.caseId != null">
+        <if test="request.caseId != null and request.caseId != ''">
             and brc.case_id = #{request.caseId}
         </if>
-        <if test="request.keyword != null">
+        <if test="request.keyword != null and request.keyword != ''">
             and b.title like concat('%', #{request.keyword},'%')
         </if>
     </sql>
diff --git a/backend/services/bug-management/src/main/java/io/metersphere/bug/service/BugService.java b/backend/services/bug-management/src/main/java/io/metersphere/bug/service/BugService.java
index 4ed925fec9..3ae9e20679 100644
--- a/backend/services/bug-management/src/main/java/io/metersphere/bug/service/BugService.java
+++ b/backend/services/bug-management/src/main/java/io/metersphere/bug/service/BugService.java
@@ -224,6 +224,20 @@ public class BugService {
         handleAndSaveCustomFields(request, isUpdate);
         // 处理附件
         handleAndSaveAttachments(request, files, currentUser, platformName, platformBug);
+
+        if (!isUpdate && StringUtils.isNotBlank(request.getCaseId())) {
+            //用例创建缺陷并关联
+            BugRelationCase bugRelationCase = new BugRelationCase();
+            bugRelationCase.setId(IDGenerator.nextStr());
+            bugRelationCase.setCaseId(request.getCaseId());
+            bugRelationCase.setBugId(bug.getId());
+            bugRelationCase.setCaseType(CaseType.FUNCTIONAL_CASE.getKey());
+            bugRelationCase.setCreateUser(currentUser);
+            bugRelationCase.setCreateTime(System.currentTimeMillis());
+            bugRelationCase.setUpdateTime(System.currentTimeMillis());
+            bugRelationCaseMapper.insertSelective(bugRelationCase);
+        }
+
         return bug;
     }
 
diff --git a/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java b/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java
index 4f4f248b7f..5f37e0f213 100644
--- a/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java
+++ b/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java
@@ -239,6 +239,10 @@ public class BugControllerTests extends BaseTest {
         MultiValueMap<String, Object> paramMap = getDefaultMultiPartParam(request, file);
         this.requestMultipartWithOkAndReturn(BUG_ADD, paramMap);
 
+        request.setCaseId("test");
+        paramMap = new LinkedMultiValueMap<>();
+        paramMap.add("request", JSON.toJSONString(request));
+        this.requestMultipartWithOkAndReturn(BUG_ADD, paramMap);
     }
 
     @Test