diff --git a/kernel_lite/util_posix/src/ActsUtilCheckApiTest.cpp b/kernel_lite/util_posix/src/ActsUtilCheckApiTest.cpp
index a4796dd4bd6463317abd96575ac41ef6d659a210..fee129a7e3c4c3519c5a177486a1d089ad79d1b7 100755
--- a/kernel_lite/util_posix/src/ActsUtilCheckApiTest.cpp
+++ b/kernel_lite/util_posix/src/ActsUtilCheckApiTest.cpp
@@ -380,20 +380,20 @@ HWTEST_F(ActsUtilCheckApiTest, testIsascii2200, Function | MediumTest | Level1)
     ASSERT_TRUE(0 == returnVal) << "ErrInfo: isascii returnVal:='" << returnVal << "'";
 }
 
-/**
-* @tc.number     SUB_KERNEL_UTIL_CHECK_ISASTREAM_2300
-* @tc.name       test isastream api with digit
-* @tc.desc       [C- SOFTWARE -0200]
-*/
-HWTEST_F(ActsUtilCheckApiTest, testIsastream2300, Function | MediumTest | Level1) {
-    int paraVal;
-    int returnVal;
-
-    paraVal = 128;
-    returnVal = isastream(paraVal);
-    LOGD("    isastream returnVal:='%d'\n", returnVal);
-    ASSERT_TRUE(-1 == returnVal) << "ErrInfo: isastream returnVal:='" << returnVal << "'";
-}
+// /**
+// * @tc.number     SUB_KERNEL_UTIL_CHECK_ISASTREAM_2300
+// * @tc.name       test isastream api with digit
+// * @tc.desc       [C- SOFTWARE -0200]
+// */
+// HWTEST_F(ActsUtilCheckApiTest, testIsastream2300, Function | MediumTest | Level1) {
+//     int paraVal;
+//     int returnVal;
+
+//     paraVal = 128;
+//     returnVal = isastream(paraVal);
+//     LOGD("    isastream returnVal:='%d'\n", returnVal);
+//     ASSERT_TRUE(-1 == returnVal) << "ErrInfo: isastream returnVal:='" << returnVal << "'";
+// }
 
 /**
 * @tc.number     SUB_KERNEL_UTIL_CHECK_ISATTY_2400