To provide a lottery system by cellular phones using cellular phone terminals for arousing participating desires in a lottery.

This lottery system is provided with a registration Web site 1 registering lottery participation and a publication Web site 2 publicizing the progress and/or the result of the lottery. Participation registrations from the cellular phone terminals are received, one of all participation registering terminals W is decided as a reply right terminal W1, the first figure of it is decided as the first figure of the winning number, and a reply right for the next figure is given to this terminal. When the next figure is replied and decided, a terminal to be given with a reply right for the next figure is selected from all terminals corresponding to the figure number of the winning number up to the next figure, and the next figure is replied. When the next figure is the final figure, one of all lottery subject terminals is optionally selected, and the final figure is replied to determine the winning number.