Radio network data communication interface and method for bank

This invention relates to a wireless network data channel interface and a method used in bank including: a wireless operation end switching processor receiving bank service data of mobile service communication terminals via wireless network to distribute them according to the applied fields and destination addresses, an external fire wall of the operation end transferring legal data packets based on the source and destination addresses, routers of operation end and bank end for setting up special connection between bank end and wireless operation end, the external fire wall of the bank end filtering and monitoring R-T data packets, a bank end switching processor communicating with related bank service servers via related bank service LAN based on the sort of bank service data to solve the wire cut-in problem of mobile communication terminals and bank internal networks.