diff --git a/system-setting/backend/src/main/resources/db/migration/V127__2.0.1__release.sql b/system-setting/backend/src/main/resources/db/migration/V127__2.0.1__release.sql
index 76b9883786..4ee019aa7a 100644
--- a/system-setting/backend/src/main/resources/db/migration/V127__2.0.1__release.sql
+++ b/system-setting/backend/src/main/resources/db/migration/V127__2.0.1__release.sql
@@ -523,7 +523,7 @@ WHERE `type` = '';
 --
 -- 初始化attachment_module_relation数据
 INSERT INTO attachment_module_relation
-SELECT case_id, 'test_case', file_id
+SELECT case_id, 'testcase', file_id
 FROM test_case_file;
 -- 清空test_case_file表数据
 DELETE
diff --git a/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.java b/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.java
index 2530f15a3a..3ea6d5099f 100644
--- a/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.java
+++ b/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.java
@@ -15,4 +15,9 @@ public interface ExtAttachmentModuleRelationMapper {
      * @param attachmentModuleRelations 附件关系记录
      */
     void batchInsert(@Param("attachmentModuleRelations") List<AttachmentModuleRelation> attachmentModuleRelations);
+
+    /**
+     * 批量更新test_case=>testcase
+     */
+    void batchUpdateErrRelationType();
 }
diff --git a/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.xml b/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.xml
index 911c30f4aa..8610f9b519 100644
--- a/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.xml
+++ b/test-track/backend/src/main/java/io/metersphere/base/mapper/ext/ExtAttachmentModuleRelationMapper.xml
@@ -9,4 +9,8 @@
             (#{relation.relationId}, #{relation.relationType}, #{relation.attachmentId}, #{relation.fileMetadataRefId})
         </foreach>
     </insert>
+
+    <update id="batchUpdateErrRelationType">
+        UPDATE attachment_module_relation SET relation_type = 'testcase' where relation_type = 'test_case'
+    </update>
 </mapper>
diff --git a/test-track/backend/src/main/java/io/metersphere/service/TestCaseService.java b/test-track/backend/src/main/java/io/metersphere/service/TestCaseService.java
index 5683ecb03b..0ad50722dd 100644
--- a/test-track/backend/src/main/java/io/metersphere/service/TestCaseService.java
+++ b/test-track/backend/src/main/java/io/metersphere/service/TestCaseService.java
@@ -132,6 +132,8 @@ public class TestCaseService {
     TestCaseTestMapper testCaseTestMapper;
     @Resource
     AttachmentModuleRelationMapper attachmentModuleRelationMapper;
+    @Resource
+    ExtAttachmentModuleRelationMapper extAttachmentModuleRelationMapper;
     //    @Resource
     //    private LoadTestMapper loadTestMapper;
     //    @Resource
@@ -2816,6 +2818,8 @@ public class TestCaseService {
     }
 
     public void initAttachment() {
+        // 处理SQL升级attachment_module_relation类型错误问题
+        extAttachmentModuleRelationMapper.batchUpdateErrRelationType();
         // 用例有关附件处理
         AttachmentModuleRelationExample relationExample = new AttachmentModuleRelationExample();
         relationExample.createCriteria().andRelationTypeEqualTo(AttachmentType.TEST_CASE.type());
@@ -2832,7 +2836,7 @@ public class TestCaseService {
             List<FileMetadata> allCaseFileMetadatas = fileMetadataMapper.selectByExample(fileMetadataExample);
             FileContentExample fileContentExample = new FileContentExample();
             fileContentExample.createCriteria().andFileIdIn(fileIds);
-            List<FileContent> allCaseFileContents = fileContentMapper.selectByExample(fileContentExample);
+            List<FileContent> allCaseFileContents = fileContentMapper.selectByExampleWithBLOBs(fileContentExample);
             entry.getValue().stream().forEach(relation -> {
                 String filename = StringUtils.EMPTY;
                 List<FileMetadata> fileMetadatas = allCaseFileMetadatas.stream().filter(fileMetadata -> fileMetadata.getId().equals(relation.getAttachmentId()))
@@ -2850,6 +2854,8 @@ public class TestCaseService {
                     fileAttachmentMetadataMapper.insert(fileAttachmentMetadata);
                     AttachmentModuleRelation record = new AttachmentModuleRelation();
                     record.setAttachmentId(fileAttachmentMetadata.getId());
+                    record.setRelationId(relation.getRelationId());
+                    record.setRelationType(relation.getRelationType());
                     AttachmentModuleRelationExample example = new AttachmentModuleRelationExample();
                     example.createCriteria().andRelationIdEqualTo(relation.getRelationId())
                             .andAttachmentIdEqualTo(relation.getAttachmentId()).andRelationTypeEqualTo(relation.getRelationType());