diff --git a/include/rtdef.h b/include/rtdef.h
index 2c21f5a2588a1f171021eaaccc503ead9977d1e0..027440fc48787eb680c2dc062e2c4a93115a14c0 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -169,7 +169,6 @@ typedef struct rt_object* rt_object_t;	/* Type for kernel objects. */
  *	- Process
  *	- Semaphore
  *	- Mutex
- *	- FastEvent
  *	- Event
  *	- MailBox
  *	- MessageQueue
@@ -188,9 +187,6 @@ enum rt_object_class_type
 #ifdef RT_USING_MUTEX
 	RT_Object_Class_Mutex,		/* The object is a mutex. */
 #endif
-#ifdef RT_USING_FASTEVENT
-	RT_Object_Class_FastEvent,	/* The object is a fast event. */
-#endif
 #ifdef RT_USING_EVENT
 	RT_Object_Class_Event,		/* The object is a event. */
 #endif
@@ -323,7 +319,7 @@ struct rt_thread
 #endif
 	rt_uint32_t	number_mask;
 
-#if defined(RT_USING_EVENT) || defined(RT_USING_FASTEVENT)
+#if defined(RT_USING_EVENT)
 	/* thread event */
 	rt_uint32_t event_set;
 	rt_uint8_t	event_info;
@@ -424,27 +420,12 @@ struct rt_mutex
 typedef struct rt_mutex* rt_mutex_t;
 #endif
 
-#if defined(RT_USING_EVENT) || defined(RT_USING_FASTEVENT)
+#if defined(RT_USING_EVENT)
 #define RT_EVENT_FLAG_AND		0x01
 #define RT_EVENT_FLAG_OR		0x02
 #define RT_EVENT_FLAG_CLEAR		0x04
 #endif
 
-#ifdef RT_USING_FASTEVENT
-/*
- * fast_event
- */
-struct rt_fast_event
-{
-	struct rt_object parent;
-
-	rt_uint32_t set;				/* event set. */
-
-	rt_list_t thread_list[RT_EVENT_LENGTH];	/* threads blocked on this resource. */
-};
-typedef struct rt_fast_event* rt_fast_event_t;
-#endif
-
 #ifdef RT_USING_EVENT
 /*
  * event
diff --git a/include/rtthread.h b/include/rtthread.h
index 540c1aacdb6764a8fbe17a69fe831d878c2645f2..97d28f50453b52bb86d0015ddd39e36bb05835f7 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -204,20 +204,6 @@ rt_err_t rt_mutex_release(rt_mutex_t mutex);
 rt_err_t rt_mutex_control(rt_mutex_t mutex, rt_uint8_t cmd, void* arg);
 #endif
 
-#ifdef RT_USING_FASTEVENT
-/*
- * fast_event interface
- */
-rt_err_t rt_fast_event_init(rt_fast_event_t event, const char* name, rt_uint8_t flag);
-rt_err_t rt_fast_event_detach(rt_fast_event_t event);
-rt_fast_event_t rt_fast_event_create (const char* name, rt_uint8_t flag);
-rt_err_t rt_fast_event_delete (rt_fast_event_t event);
-
-rt_err_t rt_fast_event_send(rt_fast_event_t event, rt_uint8_t bit);
-rt_err_t rt_fast_event_recv(rt_fast_event_t event, rt_uint8_t bit, rt_uint8_t opt, rt_int32_t timeout);
-rt_err_t rt_fast_event_control (rt_fast_event_t event, rt_uint8_t cmd, void* arg);
-#endif
-
 #ifdef RT_USING_EVENT
 /*
  * event interface
diff --git a/src/object.c b/src/object.c
index d3c6828bd89a8662d41af5c011623870be5bdbcf..0655382350d4e21d53c5d09531a7423339d2d90d 100644
--- a/src/object.c
+++ b/src/object.c
@@ -38,7 +38,7 @@ void (*rt_object_put_hook)(struct rt_object* object);
 /**
  * This function will set a hook function, which will be invoked when object
  * attaches to kernel object system.
- * 
+ *
  * @param hook the hook function
  */
 void rt_object_attach_sethook(void (*hook)(struct rt_object* object))
@@ -49,7 +49,7 @@ void rt_object_attach_sethook(void (*hook)(struct rt_object* object))
 /**
  * This function will set a hook function, which will be invoked when object
  * detaches from kernel object system.
- * 
+ *
  * @param hook the hook function
  */
 void rt_object_detach_sethook(void (*hook)(struct rt_object* object))
@@ -60,14 +60,14 @@ void rt_object_detach_sethook(void (*hook)(struct rt_object* object))
 /**
  * This function will set a hook function, which will be invoked when object
  * is taken from kernel object system.
- * 
- * The object is taken means that 
+ *
+ * The object is taken means that
  * semaphore - semaphore is taken by thread
  * mutex - mutex is taken by thread
- * event/fast event - event/fast event is received by thread
+ * event - event is received by thread
  * mailbox - mail is received by thread
  * message queue - message is received by thread
- * 
+ *
  * @param hook the hook function
  */
 void rt_object_trytake_sethook(void (*hook)(struct rt_object* object))
@@ -78,15 +78,15 @@ void rt_object_trytake_sethook(void (*hook)(struct rt_object* object))
 /**
  * This function will set a hook function, which will be invoked when object
  * have been taken from kernel object system.
- * 
- * The object have been taken means that 
+ *
+ * The object have been taken means that
  * semaphore - semaphore have been taken by thread
  * mutex - mutex have been taken by thread
- * event/fast event - event/fast event have been received by thread
+ * event - event have been received by thread
  * mailbox - mail have been received by thread
  * message queue - message have been received by thread
  * timer - timer is started
- * 
+ *
  * @param hook the hook function
  */
 void rt_object_take_sethook(void (*hook)(struct rt_object* object))
@@ -97,7 +97,7 @@ void rt_object_take_sethook(void (*hook)(struct rt_object* object))
 /**
  * This function will set a hook function, which will be invoked when object
  * is put to kernel object system.
- * 
+ *
  * @param hook the hook function
  */
 void rt_object_put_sethook(void (*hook)(struct rt_object* object))
@@ -142,13 +142,6 @@ void rt_system_object_init(void)
 	rt_object_container[RT_Object_Class_Mutex].type = RT_Object_Class_Mutex;
 #endif
 
-#ifdef RT_USING_FASTEVENT
-	/* init object container - fast event */
-	rt_list_init(&(rt_object_container[RT_Object_Class_FastEvent].object_list));
-	rt_object_container[RT_Object_Class_FastEvent].object_size = sizeof(struct rt_fast_event);
-	rt_object_container[RT_Object_Class_FastEvent].type = RT_Object_Class_FastEvent;
-#endif
-
 #ifdef RT_USING_EVENT
 	/* init object container - event */
 	rt_list_init(&(rt_object_container[RT_Object_Class_Event].object_list));