diff --git a/examples/kernel/SConscript b/examples/kernel/SConscript
index f07ccbb84bb586b07d0f3e39a87f2da1c2271faa..361008515770dc7a43cab5d88c9f665cf41aaa7b 100644
--- a/examples/kernel/SConscript
+++ b/examples/kernel/SConscript
@@ -31,9 +31,9 @@ timer_timeout.c
 heap_malloc.c
 heap_realloc.c
 memp_simple.c
+tc_sample.c
 """)
-CPPDEFINES = ['RT_USING_TC']
 
-group = DefineGroup('examples', src, depend = [''], CPPDEFINES = CPPDEFINES)
+group = DefineGroup('examples', src, depend = ['RT_USING_TC'])
 
 Return('group')
diff --git a/examples/kernel/tc_comm.c b/examples/kernel/tc_comm.c
index 47d34359328d7cd4844c57940dfd74b3ff271688..de9bb3ce31d450bca766d55dc888d4695658fd5e 100644
--- a/examples/kernel/tc_comm.c
+++ b/examples/kernel/tc_comm.c
@@ -67,6 +67,7 @@ void tc_thread_entry(void* parameter)
 		}
 	}
 
+	rt_kprintf("RT-Thread TestCase Running Done!\n");
 	/* detach tc semaphore */
 	rt_sem_detach(&_tc_sem);
 }
diff --git a/examples/kernel/tc_sample.c b/examples/kernel/tc_sample.c
new file mode 100644
index 0000000000000000000000000000000000000000..ea77ccda39398da34f822f27d1695b308f59f082
--- /dev/null
+++ b/examples/kernel/tc_sample.c
@@ -0,0 +1,62 @@
+#include <rtthread.h>
+#include "tc_comm.h"
+
+static rt_thread_t tid = RT_NULL;
+static void sample_thread(void* parameter)
+{
+	rt_kprintf("I'm sample!\n");
+}
+static void sample_thread_cleanup(struct rt_thread *p)
+{
+	tid = RT_NULL;
+	tc_done(TC_STAT_PASSED);
+}
+
+int sample_init()
+{
+	tid = rt_thread_create("t",
+		sample_thread, RT_NULL,
+		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
+	if (tid != RT_NULL)
+	{
+		rt_thread_startup(tid);
+		tid->cleanup = sample_thread_cleanup;
+	}
+	else
+		tc_stat(TC_STAT_END | TC_STAT_FAILED);
+
+	return 0;
+}
+
+#ifdef RT_USING_TC
+static void _tc_cleanup()
+{
+	/* lock scheduler */
+	rt_enter_critical();
+	/* delete thread */
+	if (tid != RT_NULL)
+	{
+		rt_kprintf("tid1 is bad\n");
+		tc_stat(TC_STAT_FAILED);
+	}
+	/* unlock scheduler */
+	rt_exit_critical();
+}
+
+int _tc_sample()
+{
+	/* set tc cleanup */
+	tc_cleanup(_tc_cleanup);
+	sample_init();
+
+	return 25;
+}
+FINSH_FUNCTION_EXPORT(_tc_sample, a thread testcase example);
+#else
+int rt_application_init()
+{
+	sample_init();
+
+	return 0;
+}
+#endif
diff --git a/examples/kernel/thread_delete.c b/examples/kernel/thread_delete.c
index 994c5e84ddfc88978ec32a7543a682c82e0d1c62..a394f282d06aa06d9268069faa07db08c76b3d4d 100644
--- a/examples/kernel/thread_delete.c
+++ b/examples/kernel/thread_delete.c
@@ -20,9 +20,20 @@ static void thread1_entry(void* parameter)
 	while (1)
 	{
 		/* 线程1采用低优先级运行，一直打印计数值 */
-		rt_kprintf("thread count: %d\n", count ++);
+		// rt_kprintf("thread count: %d\n", count ++);
+		count ++;
 	}
 }
+static void thread1_cleanup(struct rt_thread *tid)
+{
+	if (tid != tid1)
+	{
+		tc_stat(TC_STAT_END | TC_STAT_FAILED);
+		return ;
+	}
+	rt_kprintf("thread1 end\n");
+	tid1 = RT_NULL;
+}
 
 /* 线程2的入口函数 */
 static void thread2_entry(void* parameter)
@@ -37,19 +48,29 @@ static void thread2_entry(void* parameter)
 	 * 队列
 	 */
 	rt_thread_delete(tid1);
-	tid1 = RT_NULL;
 
 	/*
 	 * 线程2继续休眠10个OS Tick然后退出，线程2休眠后应切换到idle线程
 	 * idle线程将执行真正的线程1控制块和线程栈的删除
 	 */
 	rt_thread_delay(10);
+}
 
+static void thread2_cleanup(struct rt_thread *tid)
+{
 	/*
-	 * 线程2运行结束后也将自动被删除(线程控制块和线程栈依然在idle线
+	 * 线程2运行结束后也将自动被删除(线程控制块和线程栈在idle线
 	 * 程中释放)
 	 */
+
+	if (tid != tid2)
+	{
+		tc_stat(TC_STAT_END | TC_STAT_FAILED);
+		return ;
+	}
+	rt_kprintf("thread2 end\n");
 	tid2 = RT_NULL;
+	tc_done(TC_STAT_PASSED);
 }
 
 /* 线程删除示例的初始化 */
@@ -60,7 +81,10 @@ int thread_delete_init()
 		thread1_entry, RT_NULL,   /* 入口是thread1_entry，参数是RT_NULL */
 		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
 	if (tid1 != RT_NULL) /* 如果获得线程控制块，启动这个线程 */
+	{
+		tid1->cleanup = thread1_cleanup;
 		rt_thread_startup(tid1);
+	}
 	else
 		tc_stat(TC_STAT_END | TC_STAT_FAILED);
 
@@ -69,7 +93,10 @@ int thread_delete_init()
 		thread2_entry, RT_NULL,   /* 入口是thread2_entry，参数是RT_NULL */
 		THREAD_STACK_SIZE, THREAD_PRIORITY - 1, THREAD_TIMESLICE);
 	if (tid2 != RT_NULL) /* 如果获得线程控制块，启动这个线程 */
+	{
+		tid2->cleanup = thread2_cleanup;
 		rt_thread_startup(tid2);
+	}
 	else
 		tc_stat(TC_STAT_END | TC_STAT_FAILED);
 
@@ -83,10 +110,16 @@ static void _tc_cleanup()
 	rt_enter_critical();
 
 	/* delete thread */
-	if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
+	if (tid1 != RT_NULL)
+	{
+		rt_kprintf("tid1 is bad\n");
 		tc_stat(TC_STAT_FAILED);
-	if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
+	}
+	if (tid2 != RT_NULL)
+	{
+		rt_kprintf("tid2 is bad\n");
 		tc_stat(TC_STAT_FAILED);
+	}
 
 	/* unlock scheduler */
 	rt_exit_critical();
@@ -98,7 +131,7 @@ int _tc_thread_delete()
 	tc_cleanup(_tc_cleanup);
 	thread_delete_init();
 
-	return 100;
+	return 25;
 }
 FINSH_FUNCTION_EXPORT(_tc_thread_delete, a thread delete example);
 #else
diff --git a/examples/kernel/thread_detach.c b/examples/kernel/thread_detach.c
index ac7a92558e4a16bcc4007beb2fda31ac9881ef9a..84c85977fb1928f67b38af377b92cef98e34a868 100644
--- a/examples/kernel/thread_detach.c
+++ b/examples/kernel/thread_detach.c
@@ -91,6 +91,9 @@ static void _tc_cleanup()
 
 	/* 调度器解锁 */
 	rt_exit_critical();
+
+	/* 设置TestCase状态 */
+	tc_done(TC_STAT_PASSED);
 }
 
 int _tc_thread_detach()
@@ -100,7 +103,7 @@ int _tc_thread_detach()
 	thread_detach_init();
 
 	/* 返回TestCase运行的最长时间 */
-	return 100;
+	return 25;
 }
 /* 输出函数命令到finsh shell中 */
 FINSH_FUNCTION_EXPORT(_tc_thread_detach, a static thread example);
diff --git a/examples/kernel/thread_priority.c b/examples/kernel/thread_priority.c
index c64e329a6fffb17d58af753ce2833d003459b935..6d0692e4dc4afeb73465c8f65222f8834d1bfec4 100644
--- a/examples/kernel/thread_priority.c
+++ b/examples/kernel/thread_priority.c
@@ -28,7 +28,7 @@ static void thread2_entry(void* parameter)
 	tick = rt_tick_get();
 	while (1)
 	{
-		if (rt_tick_get() - tick >= 100)
+		if (rt_tick_get() - tick >= 50)
 		{
 			if (count == 0)
 				tc_done(TC_STAT_FAILED);
diff --git a/examples/kernel/thread_resume.c b/examples/kernel/thread_resume.c
index 23dfcdc132953c30f7125ac0f3cd46badcba0f11..e0ed6fa5f79527b659a5bee968d0c23464314848 100644
--- a/examples/kernel/thread_resume.c
+++ b/examples/kernel/thread_resume.c
@@ -25,6 +25,17 @@ static void thread1_entry(void* parameter)
 	/* 当线程1被唤醒时 */
 	rt_kprintf("thread1 resumed\n");
 }
+static void thread_cleanup(rt_thread_t tid)
+{
+	if (tid == tid1)
+	{
+		tid1 = RT_NULL;
+	}
+	if (tid == tid2)
+	{
+		tid = RT_NULL;
+	}
+}
 
 /* 线程2入口 */
 static void thread2_entry(void* parameter)
@@ -34,6 +45,7 @@ static void thread2_entry(void* parameter)
 
 	/* 唤醒线程1 */
 	rt_thread_resume(tid1);
+	rt_kprintf("thread2: to resume thread1\n");
 
 	/* 延时10个OS Tick */
 	rt_thread_delay(10);
@@ -48,7 +60,10 @@ int thread_resume_init()
 		thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */
 		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
 	if (tid1 != RT_NULL)
+	{
+		tid1->cleanup = thread_cleanup;
 		rt_thread_startup(tid1);
+	}
 	else
 		tc_stat(TC_STAT_END | TC_STAT_FAILED);
 
@@ -57,7 +72,10 @@ int thread_resume_init()
 		thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */
 		THREAD_STACK_SIZE, THREAD_PRIORITY - 1, THREAD_TIMESLICE);
 	if (tid2 != RT_NULL)
+	{
+		tid2->cleanup = thread_cleanup;
 		rt_thread_startup(tid2);
+	}
 	else
 		tc_stat(TC_STAT_END | TC_STAT_FAILED);
 
@@ -90,7 +108,7 @@ int _tc_thread_resume()
 	thread_resume_init();
 
 	/* 返回TestCase运行的最长时间 */
-	return 100;
+	return 25;
 }
 /* 输出函数命令到finsh shell中 */
 FINSH_FUNCTION_EXPORT(_tc_thread_resume, a thread resume example);
diff --git a/examples/kernel/thread_suspend.c b/examples/kernel/thread_suspend.c
index 2be237a2a537b9ca17f9b76f27bd3765ddecadd7..b38cb8fdfbd75672bb5cb20bff3494dfdd1f3e96 100644
--- a/examples/kernel/thread_suspend.c
+++ b/examples/kernel/thread_suspend.c
@@ -34,6 +34,7 @@ static void thread2_entry(void* parameter)
 	rt_thread_delay(10);
 
 	/* 线程2自动退出 */
+	tid2 = RT_NULL;
 }
 
 int thread_suspend_init()
diff --git a/examples/kernel/thread_yield.c b/examples/kernel/thread_yield.c
index e9fb7f57f9e7926de37d212da01666689c2e604a..71244589b84750065b74126d3b5e88dec7c76989 100644
--- a/examples/kernel/thread_yield.c
+++ b/examples/kernel/thread_yield.c
@@ -86,7 +86,7 @@ int _tc_thread_yield()
 	thread_yield_init();
 
 	/* 返回TestCase运行的最长时间 */
-	return 100;
+	return 30;
 }
 /* 输出函数命令到finsh shell中 */
 FINSH_FUNCTION_EXPORT(_tc_thread_yield, a thread yield example);