Wireless hot spot sharing and accessing method and device

The invention provides a wireless hot spot sharing and accessing method and a wireless hot spot sharing and accessing device. The method comprises the following steps of: loading a TCP/IP protocol stack, a wireless broadband access module and a Wi-Fi AP module on a mobile terminal; connecting a wireless broadband access side by using the loaded wireless broadband access module, acquiring an address of the wireless broadband access side and allocating the address to the mobile terminal; connecting a WLAN side by using the loaded Wi-Fi AP module, acquiring client information accessed on the WLAN side and transmitting the information to the mobile terminal; and establishing and saving a routing table according to the address of the wireless broadband access side and the client information, and performing route forwarding of a data packet to the WLAN side or the wireless broadband access side according to the routing table. By using a processor and an operating system resource of the mobile terminal, wireless routing function is realized, so that multiple users can share the wireless broadband access by using the mobile terminal as the accessing hot spot at any time and any place.