A mobile communication system according to the present invention that can provide a mobile communication system capable of reducing power consumption by a radio base station apparatus includes a radio base station apparatus (1) that communicates with a mobile terminal (4), a location information management apparatus (3) that acquires location information of the mobile terminal (4), and a processing apparatus (2) that changes an operation state so that the radio base station apparatus (1) does not emit radio waves based on changes in the location information of the mobile terminal (4) acquired by the location information management apparatus (3). When the mobile terminal (4) moves from a position within a service area of the radio base station apparatus (1) to a position outside the service area, for example, the processing apparatus (2) changes the operation state so that the radio base station apparatus (1) does not emit radio waves.