To provide a game machine control device which can easily find out a fraudulent work when the fraudulent work is applied to the rear side of an electronic part.

This game machine control device is equipped with a control board 22 and electronic parts 51 and 64 which are fitted on the control board 22 and control a game motion. Then, on the control board 22, see-through sections 59 through which the rear sides of the electronic parts 51 and 64 can be seen are provided.