To reliably report the ball releasing state of the lower ball tray of a pachinko machine to a player or clerk of a pachinko hall while using the existent reporting means of the pachinko machine or pachinko hall.

The lower ball tray of a pachinko machine A, with which a shielding plate for opening and closing the ball release hole of the lower ball tray is provided so as to be held at an opening position, is provided with a reporting means 4 for detecting the opened state of the shielding plate, and the pachinko machine is provided with a play confirming means 5 for confirming whether a play is being performed on the pachinko machine or not. Then, the opened state of the ball releasing hole of the lower all tray is reported by operating the existent reporting means of the pachinko machine or pachinko hall on the basis of a detecting signal from the detecting means 4 and a confirming signal from the play confirming means 5.