diff --git a/mock-generate/src/generate/generateCommonUtil.ts b/mock-generate/src/generate/generateCommonUtil.ts
index 2ba72095..8e75e8d4 100644
--- a/mock-generate/src/generate/generateCommonUtil.ts
+++ b/mock-generate/src/generate/generateCommonUtil.ts
@@ -99,6 +99,9 @@ export function getReturnStatement(returnType: ReturnTypeEntity, sourceFile: Sou
         break;
       }
     }
+    if (returnName.trimStart().trimEnd() === 'void') {
+      return ``;
+    }
     if (getClassNameSet().has(returnName)) {
       return `return new ${returnName}()`;
     } else {