The embodiment of the invention provides a method for allocating reference signals, comprising the following steps of: generating a first reference signal for first user equipment by a base station, wherein the first reference signal is used for carrying out channel estimation by the first user equipment (UE) and corresponds to a first cell, and the first reference signal is the same with a reference signal generated for the first user equipment by a base station corresponding to other cells providing services for the first user equipment and other cells include cells except the first cell in all cells providing services for the first user equipment; and sending the first reference signal to the first user equipment by the base station. Therefore, not only are the reference signals allocated for the UE but also the interference is effectively suppressed, and the channel estimation performance of the UE is increased.