Billiards is a popular indoor sport all over the world, which requires high concentration, accurate power control and excellent strategic thinking. In China, billiards is also recognized as an official sport by the State Sports General Administration. Therefore, billiards is not only an entertainment activity, but also a sport that requires skills and physical fitness. Billiards is an indoor sport, which originated in England in the19th century. It is played on a special pool table. Players use clubs to hit the ball with the goal of hitting the ball into the pocket of the pool table. Billiards is loved by people because of its elegant movements, strategies and skills. The billiard table is made of heavy wood or synthetic material with smooth surface and balls of different colors on it. Including 1 white ball, 15 colored ball (including 1 black ball and 14 red ball) and some specially marked balls. The goal of the game is to hit the ball into the bag according to the rules and get points.