Unlike the Penrose process, superradiation mainly involves incident waves and outgoing waves, and it is a quantum process. We know that the fluctuation simulation of the Penrose process is called superradiation.Traditionally, superradiance is a process of microscopic interference, which can not occur for large mass objects (unless they are decomposed) . In this paper, however, it is proposed that superradiation may occur for massive objects when the default new boundary condition.