The invention provides a method for realizing fast rollcall under a TD-LTE broadband trunking communication system. Fast rollcall service is achieved by using a cluster broadcast mode in the broadbandtrunking communication system, adding rollcall service control plane signalling in the broadband trunking communication system and expanding a non-access layer service request process and a cluster paging process; the rollcall service is completed in the broadband trunking communication system through a system notification phase, a terminal response phase and a system confirmation phase, and allthe service control of the three phases is signalling control; and in the method provided by the invention, by adding the rollcall service control signalling and effectively utilizing the existing cluster broadcast mode and the cluster service request process of the broadband trunking communication system, the control of the rollcall service is simply and conveniently completed in the signalling processing phase. According to the method provided by the invention, a service plane bearer for rollcall service processing is not established anymore, thereby effectively reducing the occupation of the wireless resources and system resources, reducing the system load, reducing the service processing delay and accelerating the completion speed of the system rollcall service.