A simulation apparatus 10 carries out simulation for associated operation equipment 2 provided with a plurality of mobile devices 5a, 5b, 5c, 5d, 7a, 7b, and 7c for operating in association with each other, and a control device 9 with a storage unit for storing a control program in which operation procedures are determined for the mobile devices to output control signals to the mobile devices. The simulation apparatus includes a storage device 10a for storing a simulation program to carry out simulation of the associated operation of the mobile devices on the basis of the control signals, and an arithmetic operation device 10c for receiving the control signals to execute the simulation program on the basis of the control signals.