Communication method, device and system

The embodiment of the invention provides a communication method, device and system, wherein the communication method, device and system are used for allowing UE to find the address of another UE with which the UE expects to conduct D2D communication and allowing the UE to conduct D2D communication on the basis of the address finding result. The communication method includes the steps that the first UE obtains address finding information of the second UE from a server when surely expecting to conduct D2D communication with the second UE; the first UE conducts D2D communication with the second UE according to the address finding information of the second UE.