A management system of a mining machine includes a vehicle, a first antenna, in the vehicle, receiving radio waves from GPS satellites, a portable second antenna, in a releasable manner in the vehicle, receiving radio waves from the GPS satellites, a first detector, in the vehicle, detecting a position of the first antenna based on a signal from the first antenna, a second detector, in the vehicle, detecting a position of the second antenna based on a signal from the second antenna, and a processer setting a prohibited area where an entry of a mining machine is prohibited based on detection results of the first and second detectors, such that the prohibited area includes the positions of the first and second antennae.