Method for optimized wireless access network selection

The invention claims a wireless the WLAN optimizing interaction method of user terminal and access mobile network, comprising: The WLAN user terminal and WLAN access network is the wirelessly connected with, network or the WLAN user terminal causing the access procedure certification, the WLAN access network to a user terminal transmitting user request message layers; By the user terminal, receiving according to the WLAN access network the state or a user interface readout by a network readout of current flowing terminal, and determining network readout in connected to the WLAN access network,The network of network readout is a mobile communication network operation of current WLAN connection; each, wherein the access request authentication transmission to a corresponding mobile communication network operation, otherwise the network to a user terminal to send advising signal, and user terminal completes the following operation according to advising signal. The invention with the user terminal from a connection with multiple mobile communication operation networks' WLAN accesses, hood according to the need optimizing and most and mobile communication service network access procedure.