diff --git a/api-test/backend/src/main/java/io/metersphere/api/parse/api/Swagger2Parser.java b/api-test/backend/src/main/java/io/metersphere/api/parse/api/Swagger2Parser.java
index c9c1a03392..ea7db5d677 100644
--- a/api-test/backend/src/main/java/io/metersphere/api/parse/api/Swagger2Parser.java
+++ b/api-test/backend/src/main/java/io/metersphere/api/parse/api/Swagger2Parser.java
@@ -51,7 +51,7 @@ public class Swagger2Parser extends SwaggerAbstractParser {
             sourceStr = getApiTestStr(source);  //  导入的二进制文件转换为 String
             //注：有一特殊情况，swagger2.0 文件里如果在response的parameter参数下的properties的参数里存在 required 为string类型，
             //swagger2.0不会导入，需替换一下
-            sourceStr = replaceStr(sourceStr);
+           sourceStr = replaceStr(sourceStr);
 
             JSONObject jsonObject = JSONUtil.parseObject(sourceStr);
             if (jsonObject.opt("swagger") == null || jsonObject.opt("swagger") == "null" || jsonObject.opt("swagger") == StringUtils.SPACE) {
@@ -73,7 +73,7 @@ public class Swagger2Parser extends SwaggerAbstractParser {
     }
 
     public static String replaceStr(String sourceStr) {
-        return sourceStr.replaceAll("\"required\": \".*\"", "\"required\": []");
+        return sourceStr.replaceAll("\"required\": \"(.*?)\"", "\"required\": []");
     }
 
     // 鉴权设置