diff --git a/base_sdk/ets/@ohos.base.ets b/base_sdk/ets/@ohos.base.ets
index 39ec6945abdac2dc6011f5a0023f0b2069049d7e..48464751f38fd2ba58af385481d929c60b654c3a 100644
--- a/base_sdk/ets/@ohos.base.ets
+++ b/base_sdk/ets/@ohos.base.ets
@@ -14,22 +14,30 @@
  */
 
 export class BusinessError<T = void> extends Error {
-    code: int;
+    private code_: int;
     data?: T;
 
+    get code(): int {
+        return this.code_
+    }
+
+    set code(val: int) {
+        this.code_ = val
+    }
+
     constructor() {
         super();
-        this.code = 0;
+        this.code_ = 0;
     }
 
     constructor(code: int, error: Error) {
         super(error.name, error.message, {cause: error.cause} as ErrorOptions);
-        this.code = code;
+        this.code_ = code;
     }
 
     constructor(code: int, data: T, error: Error) {
         super(error.name, error.message, {cause: error.cause} as ErrorOptions);
-        this.code = code;
+        this.code_ = code;
         this.data = data;
     }
 }