Network access method and physical keyboard

The invention provides a physical keyboard and a network access method. The physical keyboard is provided with a card slot. After a wireless network card is inserted into the card slot, the physical keyboard accesses a wireless network through the wireless network card in order that the mobile terminal can realize network access through the wireless network to which the physical keyboard accesses while key data input is realized. The physical keyboard has a key data input function, and network access can be realized through the wireless network card. Moreover, the network to which the wireless network card accesses can be converted into a wireless local area network such as a Wi-Fi network to provide access points for other terminals, so that the consumption cost can be saved while the use experience of a user is enhanced.