A mobile communication system according to the present invention capable of efficiently reducing power consumption of a radio base station apparatus includes a radio base station apparatus 1 for performing communication with a mobile terminal 4, a location information management apparatus 3 for acquiring location information of the mobile terminal 4, and a processing apparatus 2 for changing an operation state of the radio base station apparatus 1 by changing at least one of intensity, type, and cycle of radio waves emitted from the radio base station apparatus 1 or by setting the radio base station apparatus 1 in such a way that the radio base station apparatus 1 does not emit radio waves based on the location information of the mobile terminal 4 acquired by the location information management apparatus 3.