The present disclosure provides a data processing method adapted to access network architecture, and the access network architecture. The data processing method includes: providing a data distribution and reordering module; acquiring, by the data distribution and reordering module, control information, the control information including information about a byte length of the data distributed over an air-interface channel and information about an air-interface link during air-interface cell switch; and distributing, by the data distribution and reordering module, data received from a PDCP layer toward a central RLC layer/a remote RLC layer in accordance with the control information, reordering data from the central RLC layer/remote RLC layer, and transmitting the reordered data to the PDCP layer.