diff --git a/sleep.c b/sleep.c
new file mode 100644
index 0000000..dce5b7c
--- /dev/null
+++ b/sleep.c
@@ -0,0 +1,21 @@
+#define __LIBRARY__
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/segment.h>
+#include <sys/stat.h>
+
+int sys_sleep(unsigned int seconds) {
+
+	sys_signal(SIGALRM, SIG_IGN);  /* �źŴ����������ΪSIG_IGN�������Ի����ź� */
+	sys_alarm(seconds);            /* seconds�����������źţ����ѽ��� */
+
+	if (sys_pause() != -1)         /* �ٴν���˯�� */
+		return 0;
+	return -1;
+}
\ No newline at end of file