A method for accessing a Universal Serial Bus (USB) device attached to the home gateway is provided to solve the problem that after the USB device is attached to the home gateway, the USB device becomes an exclusive device of the home gateway, and application software on a personal computer (PC) or other terminals can not be directly used to transparently access the USB device. The method includes: receiving a USB message of the USB device attached to the home gateway; and adapting the USB message to a network packet and sending the network packet to a virtual USB device interface of a terminal to be read by an application program of the terminal; or parsing a network packet sent by the terminal through the virtual USB device interface into a USB data frame and writing the USB data frame into the USB device. Thereby, the terminal may make full use of abundant application software (application programs) to transparently access a real USB device attached to the home gateway, and implement various functions of the USB device, without requiring the home gateway to implement one service access function for each type of USB devices.