Abstract: In view of demand that some mine field is unconvenient for cable laying and need video transmission by wireless, wireless network interface of camera based on AR2524 chip was designed on platform of network camera. The wireless network interface uses IEEE802.11b/g protocol and can access Ethernet by wireless AP. The experiment result showed that the wireless network interface can realize wireless connection with wireless monitoring and control substation and transmit video signals, and has long transmission distance, clear image, smooth video, which meets with basic demands of mine video transmission.