A lottery device has a turntable 12 with a plurality of ball pockets 13 and balls 2 each to be dropped onto the turntable 12, rolls on the turntable 12 and eventually falls into one of the ball pockets 13 to determine a winner ball pocket 13. The lottery device includes sets of sensors 24 and 25 combined with the ball pockets 13, respectively, to detect the ball that has fallen into the corresponding ball pocket 13, light-emitting rings 23 combined with the ball pockets 13, respectively, a ball identifying mechanism 41 for identifying the balls by type, and a computer 100 including a storage unit storing control programs and controlling lottery operations according to the control programs. The computer 100 executes a control procedure including the steps of: determining a color, indicating the type of the ball identified by the ball identifying mechanism 41, in which the light-emitting ring 23 emits light according to a control program, receiving detection signals provided by the sensors 24 and 25 combined with the ball pocket 13 into which the ball 2 has fallen, and causing the light-emitting ring 23 combined with the ball pocket 13 into which the ball has fallen to emit light in the predetermined color. The lottery device engrosses the players by effectively making the light-emitting rings 23 emit light according to the state of the lottery game to appeal the functions of the ball pockets 13 to the players.