Local routing processing method, device and communication system

A local routing processing method, device and communication system are provided in the embodiments of the present invention. The local routing processing method includes: a local routing processing device detecting bearer contexts of two User Equipments (UEs) contain the same session identification; the local routing processing device implementing local routing processing to traffic flows corresponding to the session identification, wherein the session identification is distributed by an application function entity. With the embodiments of the present invention, the traffic flows of the two UEs can be directly looped back locally wherein the two UEs are in the same base station or the same Serving Gateway (SGW), or are in the same anchor gateway but in the different SGWs, while without being transmitted back to the anchor gateway and being looped back through IP Multimedia Subsystem (IMS) network routing, thus the backhaul transport network pressure of the core network is reduced, as well as the transmission delay of traffic flows is decreased, and the service quality of the network is enhanced.