diff --git a/uni_modules/uts-tests/utssdk/Number.uts b/uni_modules/uts-tests/utssdk/Number.uts
index c782ed19bd34708bb3794f014389f42f1854f7aa..8e2d2ad05594d9133b547677eb7fe787aa506fa2 100644
--- a/uni_modules/uts-tests/utssdk/Number.uts
+++ b/uni_modules/uts-tests/utssdk/Number.uts
@@ -188,6 +188,7 @@ export function testNumber() : Result {
       expect(bStr12.length).toEqual(21);
       expect(bStr12.substring(0,14)).toEqual("27373a86ba1a19");
       
+      expect(0.6.toString()).toEqual("0.6");
     })
 
     test('valueOf', () => {