diff --git a/components/drivers/include/drivers/usb_device.h b/components/drivers/include/drivers/usb_device.h
index caa171079be4c4b50238037841f312db48c127b3..572c7d0dff06f2862f0b0917573237e1bca5022a 100644
--- a/components/drivers/include/drivers/usb_device.h
+++ b/components/drivers/include/drivers/usb_device.h
@@ -213,6 +213,13 @@ struct udevice
 };
 typedef struct udevice* udevice_t;
 
+struct udclass
+{
+    rt_list_t list;
+    ufunction_t (*rt_usbd_function_create)(udevice_t device);
+};
+typedef struct udclass* udclass_t;
+
 enum udev_msg_type
 {
     USB_MSG_SETUP_NOTIFY,
@@ -248,6 +255,7 @@ struct udev_msg
 };
 typedef struct udev_msg* udev_msg_t;
 
+int rt_usbd_class_list_init(void);
 udevice_t rt_usbd_device_new(void);
 uconfig_t rt_usbd_config_new(void);
 ufunction_t rt_usbd_function_new(udevice_t device, udev_desc_t dev_desc,
@@ -266,6 +274,7 @@ rt_err_t rt_usbd_device_set_qualifier(udevice_t device, struct usb_qualifier_des
 rt_err_t rt_usbd_device_set_os_comp_id_desc(udevice_t device, usb_os_comp_id_desc_t os_comp_id_desc);
 rt_err_t rt_usbd_device_add_config(udevice_t device, uconfig_t cfg);
 rt_err_t rt_usbd_config_add_function(uconfig_t cfg, ufunction_t func);
+rt_err_t rt_usbd_class_register(udclass_t udclass);
 rt_err_t rt_usbd_function_add_interface(ufunction_t func, uintf_t intf);
 rt_err_t rt_usbd_interface_add_altsetting(uintf_t intf, ualtsetting_t setting);
 rt_err_t rt_usbd_altsetting_add_endpoint(ualtsetting_t setting, uep_t ep);
@@ -283,10 +292,12 @@ rt_size_t rt_usbd_ep0_write(udevice_t device, void *buffer, rt_size_t size);
 rt_size_t rt_usbd_ep0_read(udevice_t device, void *buffer, rt_size_t size, 
     rt_err_t (*rx_ind)(udevice_t device, rt_size_t size));
 
-ufunction_t rt_usbd_function_mstorage_create(udevice_t device);
-ufunction_t rt_usbd_function_cdc_create(udevice_t device);
-ufunction_t rt_usbd_function_rndis_create(udevice_t device);
-ufunction_t rt_usbd_function_dap_create(udevice_t device);
+int rt_usbd_vcom_class_register(void);
+int rt_usbd_ecm_class_register(void);
+int rt_usbd_hid_class_register(void);
+int rt_usbd_msc_class_register(void);
+int rt_usbd_rndis_class_register(void);
+int rt_usbd_winusb_class_register(void);
 
 #ifdef RT_USB_DEVICE_COMPOSITE
 rt_err_t rt_usbd_function_set_iad(ufunction_t func, uiad_desc_t iad_desc);
diff --git a/components/drivers/usb/usbdevice/class/cdc_vcom.c b/components/drivers/usb/usbdevice/class/cdc_vcom.c
index c4985f04a2c84b0bf45727787dc06561079bc3b0..784f968772a0024555bb60836a229116d33856b9 100644
--- a/components/drivers/usb/usbdevice/class/cdc_vcom.c
+++ b/components/drivers/usb/usbdevice/class/cdc_vcom.c
@@ -934,6 +934,16 @@ static void rt_usb_vcom_init(struct ufunction *func)
     result = rt_thread_startup(&vcom_thread);
     RT_ASSERT(result == RT_EOK);       
 }
+struct udclass vcom_class = 
+{
+    .rt_usbd_function_create = rt_usbd_function_cdc_create
+};
 
-#endif
+int rt_usbd_vcom_class_register(void)
+{
+    rt_usbd_class_register(&vcom_class);
+    return 0;
+}
+INIT_PREV_EXPORT(rt_usbd_vcom_class_register);
 
+#endif
diff --git a/components/drivers/usb/usbdevice/class/ecm.c b/components/drivers/usb/usbdevice/class/ecm.c
index 0e38356ddaa8881e067ffe044485e6fd064d998e..0711de3f516c81ee49841ca118b6536cf7460cb5 100644
--- a/components/drivers/usb/usbdevice/class/ecm.c
+++ b/components/drivers/usb/usbdevice/class/ecm.c
@@ -604,3 +604,15 @@ ufunction_t rt_usbd_function_ecm_create(udevice_t device)
    
     return cdc;
 }
+
+struct udclass ecm_class = 
+{
+    .rt_usbd_function_create = rt_usbd_function_ecm_create
+};
+
+int rt_usbd_ecm_class_register(void)
+{
+    rt_usbd_class_register(&ecm_class);
+    return 0;
+}
+INIT_PREV_EXPORT(rt_usbd_ecm_class_register);
diff --git a/components/drivers/usb/usbdevice/class/hid.c b/components/drivers/usb/usbdevice/class/hid.c
index b752564974e056a33d2b2e4f316a7f405d7b06f0..29e581d62b6c7cc45185f8f80955a64cb1446c71 100644
--- a/components/drivers/usb/usbdevice/class/hid.c
+++ b/components/drivers/usb/usbdevice/class/hid.c
@@ -674,5 +674,15 @@ ufunction_t rt_usbd_function_hid_create(udevice_t device)
     rt_usb_hid_init(func);
     return func;
 }
+struct udclass hid_class = 
+{
+    .rt_usbd_function_create = rt_usbd_function_hid_create
+};
 
+int rt_usbd_hid_class_register(void)
+{
+    rt_usbd_class_register(&hid_class);
+    return 0;
+}
+INIT_PREV_EXPORT(rt_usbd_hid_class_register);
 #endif /* RT_USB_DEVICE_HID */
diff --git a/components/drivers/usb/usbdevice/class/mstorage.c b/components/drivers/usb/usbdevice/class/mstorage.c
index 14284e85a24b7a580c7213cf740538f85542abf8..63d7b0f9adf58c1d7d180e3ce508908f18bef285 100644
--- a/components/drivers/usb/usbdevice/class/mstorage.c
+++ b/components/drivers/usb/usbdevice/class/mstorage.c
@@ -1114,5 +1114,16 @@ ufunction_t rt_usbd_function_mstorage_create(udevice_t device)
 
     return func;
 }
+struct udclass msc_class = 
+{
+    .rt_usbd_function_create = rt_usbd_function_mstorage_create
+};
+
+int rt_usbd_msc_class_register(void)
+{
+    rt_usbd_class_register(&msc_class);
+    return 0;
+}
+INIT_PREV_EXPORT(rt_usbd_msc_class_register);
 
 #endif
diff --git a/components/drivers/usb/usbdevice/class/rndis.c b/components/drivers/usb/usbdevice/class/rndis.c
index 670c7686b43417d169b742f66069814ef3dbe601..7e67b28bef9b1e6c2ccd45255a7edfca312bf0eb 100644
--- a/components/drivers/usb/usbdevice/class/rndis.c
+++ b/components/drivers/usb/usbdevice/class/rndis.c
@@ -1325,3 +1325,15 @@ ufunction_t rt_usbd_function_rndis_create(udevice_t device)
 
     return cdc;
 }
+
+struct udclass rndis_class = 
+{
+    .rt_usbd_function_create = rt_usbd_function_rndis_create
+};
+
+int rt_usbd_rndis_class_register(void)
+{
+    rt_usbd_class_register(&rndis_class);
+    return 0;
+}
+INIT_PREV_EXPORT(rt_usbd_rndis_class_register);
\ No newline at end of file
diff --git a/components/drivers/usb/usbdevice/class/winusb.c b/components/drivers/usb/usbdevice/class/winusb.c
index 82ac602c857e88c960ba6c2287cd3f1e0d7f2dd2..71d946fcd962c8c9ca977227bbc565014e09fe72 100644
--- a/components/drivers/usb/usbdevice/class/winusb.c
+++ b/components/drivers/usb/usbdevice/class/winusb.c
@@ -320,3 +320,14 @@ ufunction_t rt_usbd_function_winusb_create(udevice_t device)
     return func;
 }
 
+struct udclass winusb_class = 
+{
+    .rt_usbd_function_create = rt_usbd_function_winusb_create
+};
+
+int rt_usbd_winusb_class_register(void)
+{
+    rt_usbd_class_register(&winusb_class);
+    return 0;
+}
+INIT_PREV_EXPORT(rt_usbd_winusb_class_register);
diff --git a/components/drivers/usb/usbdevice/core/usbdevice.c b/components/drivers/usb/usbdevice/core/usbdevice.c
index da46425ec466d5d54191763fc5641fd4608d9b6d..72f80dc2548dacc6ac3a722f125992312bf76632 100644
--- a/components/drivers/usb/usbdevice/core/usbdevice.c
+++ b/components/drivers/usb/usbdevice/core/usbdevice.c
@@ -84,6 +84,19 @@ struct usb_os_comp_id_descriptor usb_comp_id_desc =
     USB_DYNAMIC,
     {0x00,0x00,0x00,0x00,0x00,0x00,0x00},
 };
+static rt_list_t class_list;
+int rt_usbd_class_list_init(void)
+{
+    rt_list_init(&class_list);
+    return 0;
+}
+INIT_BOARD_EXPORT(rt_usbd_class_list_init);
+
+rt_err_t rt_usbd_class_register(udclass_t udclass)
+{
+    rt_list_insert_before(&class_list,&udclass->list);
+    return RT_EOK;
+}
 
 rt_err_t rt_usb_device_init(void)
 {
@@ -91,6 +104,8 @@ rt_err_t rt_usb_device_init(void)
     udevice_t udevice;
     uconfig_t cfg;
     ufunction_t func;
+    rt_list_t *i;
+    udclass_t udclass;
 
     /* create and startup usb device thread */
     rt_usbd_core_init();
@@ -111,79 +126,25 @@ rt_err_t rt_usb_device_init(void)
     /* create a configuration object */
     cfg = rt_usbd_config_new();
 
-    rt_usbd_device_set_os_comp_id_desc(udevice,&usb_comp_id_desc);
+    rt_usbd_device_set_os_comp_id_desc(udevice, &usb_comp_id_desc);
 
-#ifdef RT_USB_DEVICE_MSTORAGE
+    for(i = class_list.next; i!= &class_list; i = i->next)
     {
-        extern ufunction_t rt_usbd_function_mstorage_create(udevice_t device);
-        /* create a mass storage function object */
-        func = rt_usbd_function_mstorage_create(udevice);
-
+        /* get a class creater */
+        udclass = rt_list_entry(i, struct udclass, list);
+        /* create a function object */
+        func = udclass->rt_usbd_function_create(udevice);
         /* add the function to the configuration */
         rt_usbd_config_add_function(cfg, func);
     }
-#endif
-
-#ifdef RT_USB_DEVICE_CDC
-    {
-        extern ufunction_t rt_usbd_function_cdc_create(udevice_t device);
-        /* create a cdc function object */
-        func = rt_usbd_function_cdc_create(udevice);
-
-        /* add the function to the configuration */
-        rt_usbd_config_add_function(cfg, func);
-    }
-#endif
-
-#ifdef RT_USB_DEVICE_HID
-    {
-        extern ufunction_t rt_usbd_function_hid_create(udevice_t device);
-        /* create a cdc function object */
-        func = rt_usbd_function_hid_create(udevice);
-
-        /* add the function to the configuration */
-        rt_usbd_config_add_function(cfg, func);
-    }
-#endif
-
-#ifdef RT_USB_DEVICE_RNDIS
-    {
-        extern ufunction_t rt_usbd_function_rndis_create(udevice_t device);
-        /* create a rndis function object */
-        func = rt_usbd_function_rndis_create(udevice);
-
-        /* add the function to the configuration */
-        rt_usbd_config_add_function(cfg, func);
-    }
-#endif
-
-#ifdef RT_USB_DEVICE_ECM
-    {
-        extern ufunction_t rt_usbd_function_ecm_create(udevice_t device);
-        /* create a rndis function object */
-        func = rt_usbd_function_ecm_create(udevice);
-
-        /* add the function to the configuration */
-        rt_usbd_config_add_function(cfg, func);
-    }
-#endif
-    
-#ifdef RT_USB_DEVICE_WINUSB
-    {
-        extern ufunction_t rt_usbd_function_winusb_create(udevice_t device);
-        /* create a rndis function object */
-        func = rt_usbd_function_winusb_create(udevice);
-
-        /* add the function to the configuration */
-        rt_usbd_config_add_function(cfg, func);
-    }
-#endif
-
     /* set device descriptor to the device */
 #ifdef RT_USB_DEVICE_COMPOSITE
     rt_usbd_device_set_descriptor(udevice, &compsit_desc);
     rt_usbd_device_set_string(udevice, ustring);
-    rt_usbd_device_set_qualifier(udevice, &dev_qualifier);
+    if(udevice->dcd->device_is_hs)
+    {
+        rt_usbd_device_set_qualifier(udevice, &dev_qualifier);
+    }
 #else
     rt_usbd_device_set_descriptor(udevice, func->dev_desc);
 #endif