A management system and method for managing a radiation treatment machine are disclosed herein. The system includes an information acquisition unit, an amount-of-use database, a treatment plan database, and a management unit. The information acquisition unit acquires information about the amount of use of the radiation treatment machine and information about a treatment plan. The amount-of-use database stores the information about the amount of use of the radiation treatment machine. The treatment plan database stores the time at which treatment is to be performed and information about the amount of use of the radiation treatment machine. The management unit checks whether the cumulative amount of use of the radiation treatment machine to exceed a predetermined reference value when the treatment is to be performed.