Abstract: A ping-pong ball shooter including a reciprocating arm mechanism composed of an abruptly returning device capable of shooting out a ball, a rotating mechanism, a ball feeding/regaining device, an eye ball reciprocating mechanism and speed changing device, whereby by means of slider-crank mechanism in four linkages, the eye ball reciprocating mechanism can rotate left and right and up and down like an eye, making the shot out ping-pong balls scattered within a sector area of a ping-pong table, and the rotation direction, bounding speed and bounding strength of the ball can be controlled, and the shot out balls can be recollected into a ball collector through a hopper slide way and a sleeve ball bag, one end of the sleeve ball bag being open and inserted into the slide way and the other end thereof being closed, serving as a driving end, three sets of blades and openings being disposed therein whereby when rotating, due to centrifugal force, the balls slide through the opening into ball pipe to be pushed by the