A pachinko machine board includes a game board on which nails, a start chucker, a big prize winning port and prize winning ports are fixed and a projection mechanism formed for projecting projection light from the rear surface of the game board to display images for a game on the game board. The game board includes a game board main body made of a light transmitting material so as to display the images for a game and nail fixing parts formed separately from the game board main body and attached to the game board main body. The nails, start chucker, big prize winning port and prize winning ports can be fixed to the nail fixing parts.