diff --git a/performance-test/backend/src/main/java/io/metersphere/service/PerformanceTestService.java b/performance-test/backend/src/main/java/io/metersphere/service/PerformanceTestService.java
index 411146effd..04f44d5482 100644
--- a/performance-test/backend/src/main/java/io/metersphere/service/PerformanceTestService.java
+++ b/performance-test/backend/src/main/java/io/metersphere/service/PerformanceTestService.java
@@ -586,7 +586,7 @@ public class PerformanceTestService {
         // copy test
         String copyName = copy.getName() + "_" + RandomStringUtils.randomAlphanumeric(5);
 
-        if (StringUtils.length(copyName) > 30) {
+        if (StringUtils.length(copyName) > 255) {
             MSException.throwException(Translator.get("load_test_name_length"));
         }
         copy.setId(UUID.randomUUID().toString());