Abstract: The present invention relates to a method for barrier-free access to wireless network. This method comprises the following steps: in the various wireless device to be accessed, a separate pre shared key (V-PSK) corresponding to their MAC address is set, and the above MAC address, the separate pre shared key (V-PSK) and their corresponding relationship are saved in the access point device; in the process of the handshaking between the wireless device and the access point device, both the wireless device and the access point device use the said separate pre shared key V-PSK to calculate a check value, and judge whether the two check values are same to confirm to allow access or reject access.