diff --git a/kernel_lite/ipc_posix/src/SignalTest.cpp b/kernel_lite/ipc_posix/src/SignalTest.cpp
index 00406277e3cce45e69eeb8d4852dfa927f88e127..80967ad5c2e968d355235eb5985d3b4843cbade9 100755
--- a/kernel_lite/ipc_posix/src/SignalTest.cpp
+++ b/kernel_lite/ipc_posix/src/SignalTest.cpp
@@ -41,72 +41,6 @@ HWTEST_F(IpcSignalTest, testSignalFailSig, TestSize.Level2)
     SignalFailTest(SIGSTOP, SIG_IGN);
 }
 
-/**
- * @tc.number SUB_KERNEL_IPC_SIGTIMEDWAIT_0100
- * @tc.name   sigtimedwait still work even blocked by sigprocmask
- * @tc.desc   [C- SOFTWARE -0200]
- * @tc.size   SMALL
- * @tc.type   FUNC
- */
-HWTEST_F(IpcSignalTest, testSigtimedwaitBlock, TestSize.Level1)
-{
-    int rt, status;
-    pid_t pid = fork();
-    ASSERT_TRUE(pid >= 0) << "======== Fork Error! =========";
-    if (pid == 0) { // child
-        int exitCode = 0;
-        signal(SIGSEGV, SignalHandler);
-        struct timespec time1 = {0, 100*1000000};
-        sigset_t sigmask, timeset;
-        sigemptyset(&sigmask);
-        sigaddset(&sigmask, SIGINT);
-        sigaddset(&sigmask, SIGSEGV);
-        sigemptyset(&timeset);
-        sigaddset(&timeset, SIGSEGV);
-
-        sigprocmask(SIG_BLOCK, &sigmask, 0);
-        Msleep(80);
-
-        rt = sigtimedwait(&timeset, 0, &time1);
-        if (rt != SIGSEGV) {
-            LOG("sigtimedwait return fail, expected:%d, actual:%d", SIGSEGV, rt);
-            exitCode = 1;
-        }
-
-        // check the sigprocmask set not changed
-        sigemptyset(&sigmask);
-        sigprocmask(SIG_UNBLOCK, NULL, &sigmask);
-        if (sigismember(&sigmask, SIGINT) != 1) {
-            LOG("SIGINT should still in block set!");
-            exitCode = 1;
-        }
-        if (sigismember(&sigmask, SIGSEGV) != 1) {
-            LOG("SIGSEGV should still in block set!");
-            exitCode = 1;
-        }
-        exit(exitCode);
-    } else { // parent
-        Msleep(40);
-        kill(pid, SIGSEGV);
-        Msleep(200);
-        AssertProcExitedOK(pid);
-    }
-    sigset_t pending;
-    sigemptyset(&pending);
-    sigpending(&pending);
-    if (sigisemptyset(&pending)) {
-        LOG("pending set empty");
-        return;
-    }
-    LOG("========pending set not empty=========");
-    if (sigismember(&pending, SIGCHLD)) {
-        LOG("pending set is SIGCHLD");
-        return;
-    } else {
-        LOG("pending set is not SIGCHLD!");
-    }
-}
-
 /**
  * @tc.number SUB_KERNEL_IPC_SIGTIMEDWAIT_0200
  * @tc.name   sigtimedwait error test: timeout or interupted.