diff --git a/backend/services/api-test/src/main/java/io/metersphere/api/parser/api/dataimport/HarParserApiScenario.java b/backend/services/api-test/src/main/java/io/metersphere/api/parser/api/dataimport/HarParserApiScenario.java
index 20d84343d2..0159eb8370 100644
--- a/backend/services/api-test/src/main/java/io/metersphere/api/parser/api/dataimport/HarParserApiScenario.java
+++ b/backend/services/api-test/src/main/java/io/metersphere/api/parser/api/dataimport/HarParserApiScenario.java
@@ -15,6 +15,7 @@ import io.metersphere.api.parser.api.har.model.Har;
 import io.metersphere.api.parser.api.har.model.HarEntry;
 import io.metersphere.api.parser.api.har.model.HarRequest;
 import io.metersphere.api.utils.ApiDefinitionImportUtils;
+import io.metersphere.project.utils.DataBaseStringUtils;
 import io.metersphere.sdk.constants.HttpMethodConstants;
 import io.metersphere.sdk.exception.MSException;
 import io.metersphere.sdk.util.JSON;
@@ -116,7 +117,7 @@ public class HarParserApiScenario implements ApiScenarioImportParser {
             apiScenarioStep.setId(IDGenerator.nextStr());
             apiScenarioStep.setProjectId(projectId);
             apiScenarioStep.setOriginProjectId(projectId);
-            apiScenarioStep.setName(this.parseName(msTestElement.getName()));
+            apiScenarioStep.setName(DataBaseStringUtils.parseMaxString(msTestElement.getName(), 255));
             apiScenarioStep.setUniqueId(IDGenerator.nextStr());
             msTestElement.setStepId(apiScenarioStep.getId());
             msTestElement.setProjectId(apiScenarioStep.getProjectId());
@@ -132,17 +133,6 @@ public class HarParserApiScenario implements ApiScenarioImportParser {
         }
         return parseResult;
     }
-
-    private String parseName(String name) {
-        if (StringUtils.isBlank(name)) {
-            return StringUtils.EMPTY;
-        }
-        if (name.length() > 253) {
-            return name.substring(0, 200) + "...";
-        } else {
-            return name;
-        }
-    }
 }
 
 
diff --git a/backend/services/api-test/src/main/java/io/metersphere/api/utils/ApiDefinitionImportUtils.java b/backend/services/api-test/src/main/java/io/metersphere/api/utils/ApiDefinitionImportUtils.java
index b667d415a0..605c681a53 100644
--- a/backend/services/api-test/src/main/java/io/metersphere/api/utils/ApiDefinitionImportUtils.java
+++ b/backend/services/api-test/src/main/java/io/metersphere/api/utils/ApiDefinitionImportUtils.java
@@ -153,12 +153,17 @@ public class ApiDefinitionImportUtils {
         return returnList;
     }
 
-    private static String getUniqueName(String originalName, List<String> existenceNameList) {
+    public static String getUniqueName(String originalName, List<String> existenceNameList) {
         String returnName = originalName;
-        int index = 1;
-        while (existenceNameList.contains(returnName)) {
-            returnName = originalName + " - " + index;
-            index++;
+        if (existenceNameList.contains(returnName)) {
+            if (originalName.length() > 250) {
+                originalName = originalName.trim().substring(0, 250);
+            }
+            int index = 1;
+            do {
+                returnName = originalName + "-" + index;
+                index++;
+            } while (existenceNameList.contains(returnName));
         }
         return returnName;
     }
diff --git a/backend/services/api-test/src/test/java/io/metersphere/api/controller/ApiDefinitionControllerTests.java b/backend/services/api-test/src/test/java/io/metersphere/api/controller/ApiDefinitionControllerTests.java
index 0e6fee14e9..ba6215c998 100644
--- a/backend/services/api-test/src/test/java/io/metersphere/api/controller/ApiDefinitionControllerTests.java
+++ b/backend/services/api-test/src/test/java/io/metersphere/api/controller/ApiDefinitionControllerTests.java
@@ -26,6 +26,7 @@ import io.metersphere.api.service.BaseFileManagementTestService;
 import io.metersphere.api.service.definition.ApiDefinitionService;
 import io.metersphere.api.service.definition.ApiTestCaseService;
 import io.metersphere.api.utils.ApiDataUtils;
+import io.metersphere.api.utils.ApiDefinitionImportUtils;
 import io.metersphere.functional.domain.ExportTask;
 import io.metersphere.plugin.api.spi.AbstractMsTestElement;
 import io.metersphere.project.domain.Project;
@@ -1629,6 +1630,18 @@ public class ApiDefinitionControllerTests extends BaseTest {
     @Test
     @Order(102)
     public void testImport() throws Exception {
+        // 测试 getUniqueName 方法
+        List<String> uniqueNameTestList = new ArrayList<>() {{
+            this.add("用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例-1");
+            this.add("用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录666");
+        }};
+        Assertions.assertEquals("用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例-2",
+                ApiDefinitionImportUtils.getUniqueName(
+                        "用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录66成功用例登录666",
+                        uniqueNameTestList
+                ));
+
+
         LogUtils.info("import api test");
         ApiDefinitionModule apiDefinitionModule = new ApiDefinitionModule();
         apiDefinitionModule.setId("test-import");
diff --git a/backend/services/project-management/src/main/java/io/metersphere/project/utils/DataBaseStringUtils.java b/backend/services/project-management/src/main/java/io/metersphere/project/utils/DataBaseStringUtils.java
new file mode 100644
index 0000000000..d5f92d12ed
--- /dev/null
+++ b/backend/services/project-management/src/main/java/io/metersphere/project/utils/DataBaseStringUtils.java
@@ -0,0 +1,17 @@
+package io.metersphere.project.utils;
+
+import org.apache.commons.lang3.StringUtils;
+
+public class DataBaseStringUtils {
+
+    public static String parseMaxString(String name, int maxLength) {
+        if (StringUtils.isBlank(name)) {
+            return StringUtils.EMPTY;
+        }
+        if (name.length() > maxLength) {
+            return name.substring(0, maxLength - 3) + "...";
+        } else {
+            return name;
+        }
+    }
+}