A wireless communication device, comprising: - a network speed providing module and a network type monitoring module at a network side of the wireless communication device respectively, a Wireless Local Area Network, WLAN, access number control module at a WLAN side of the wireless communication device; - the network speed providing module is configured to provide a network speed at the network side to the WLAN side; and - the network type monitoring module is configured to acquire a network type and a change of the network type, and notify the WLAN side of the network type and the change of the network type, - the WLAN access number control module is configured to determine whether the network type is a 3G network or not, and adjust a set maximum number of accesses of the device, i 0, to 1 in the case of Code Division Multiple Access, CDMA, 1x or General Packet Radio Service, GPRS, network type, adjust the set maximum number of accesses of the WLAN to 2 in case of Enhanced Data rate for GSM Evolution, EDGE, network type; and adjust the set maximum number of accesses of the WLAN according to the network speed at the network side provided by the network speed providing module when the network type is the 3G network; - wherein, when the network type is the 3G network, the WLAN access number control module is configured to: - acquire the current speed at the network side, r wan (t 0), and when the maximum number of accesses, i current, that the network side can support at the current network speed, r wan (t 0) is not equal to the current set maximum number of accesses of the device, i 0, i current ≠i 0, and i current reaches a stable time threshold by maintaining a certain value for a period of time, then: - decrease the set maximum number of accesses, i 0, when i current <i 0, and - increase the set maximum number of accesses, i 0, when i current >i 0 - a network speed providing module and a network type monitoring module at a network side of the wireless communication device respectively, a Wireless Local Area Network, WLAN, access number control module at a WLAN side of the wireless communication device; - the network speed providing module is configured to provide a network speed at the network side to the WLAN side; and - the network type monitoring module is configured to acquire a network type and a change of the network type, and notify the WLAN side of the network type and the change of the network type, - the WLAN access number control module is configured to determine whether the network type is a 3G network or not, and adjust a set maximum number of accesses of the device, i 0, to 1 in the case of Code Division Multiple Access, CDMA, 1x or General Packet Radio Service, GPRS, network type, adjust the set maximum number of accesses of the WLAN to 2 in case of Enhanced Data rate for GSM Evolution, EDGE, network type; and adjust the set maximum number of accesses of the WLAN according to the network speed at the network side provided by the network speed providing module when the network type is the 3G network; - wherein, when the network type is the 3G network, the WLAN access number control module is configured to: - acquire the current speed at the network side, r wan (t 0), and when the maximum number of accesses, i current, that the network side can support at the current network speed, r wan (t 0) is not equal to the current set maximum number of accesses of the device, i 0, i current ≠i 0, and i current reaches a stable time threshold by maintaining a certain value for a period of time, then: - decrease the set maximum number of accesses, i 0, when i current <i 0, and - increase the set maximum number of accesses, i 0, when i current >i 0