A method and system for implementing terminal handover, the method include: receiving, by a serving handover (HO) function unit, a handover instruction from a network element on network; and implementing, by the serving HO function unit, the handover for the terminal in accordance with the handover instruction, and handing over the terminal to a target base station (BS). With the disclosure, the terminal handover flow can be triggered by the network, and the problems of the inefficient terminal handover or the high network resource consumption and the handover delay in the prior art can be overcomed.