diff --git a/sop-support/sop-service-support/src/main/java/com/gitee/sop/support/doc/SopDocBuildTemplate.java b/sop-support/sop-service-support/src/main/java/com/gitee/sop/support/doc/SopDocBuildTemplate.java
index 1509b67b..573fb1e8 100644
--- a/sop-support/sop-service-support/src/main/java/com/gitee/sop/support/doc/SopDocBuildTemplate.java
+++ b/sop-support/sop-service-support/src/main/java/com/gitee/sop/support/doc/SopDocBuildTemplate.java
@@ -45,6 +45,8 @@ public class SopDocBuildTemplate extends RpcDocBuildTemplate {
 
     public static final String DEFAULT_VERSION = "1.0";
 
+    private final ParamsBuildHelper paramsBuildHelper = new ParamsBuildHelper();
+
 
     @Override
     public boolean supportsFramework(String s) {
@@ -65,7 +67,6 @@ public class SopDocBuildTemplate extends RpcDocBuildTemplate {
         }
         ClassLoader classLoader = builder.getApiConfig().getClassLoader();
         List<ApiParam> paramList = new ArrayList<>();
-        ParamsBuildHelper paramsBuildHelper = new ParamsBuildHelper();
         for (JavaParameter parameter : parameterList) {
             boolean required = false;
             String paramName = parameter.getName();