Nowadays, the growing mobile data traffic is blowout, mobile communication network has around NFV/SDN technology in-depth development of the situation, this paper pointed out the future development direction of the core network in the future network architecture, focuses on the aspects of technology evolution, business development to meet the needs of the core network, core network the network architecture of current status and the future direction of evolution, which will be beneficial to the further implementation of the core network development and network construction.