The present disclosure relates to a data processing method and apparatus, a terminal and an access point computer, which can achieve an effect that the terminal accesses multiple access points at the same time. The method includes: receiving an application access request; determining a target access point corresponding to the application access request according to a mapping relationship between the access point and an application server obtained from a blockchain network; sending a software defined perimeter SDP authentication request to the target access point; and after the SDP authentication succeeds, performing interaction of application data through a data channel established with the target access point, wherein the data channel has a period of validity of a preset time length.