The present invention relates to a ball play device comprising: a switch for outputting electricity by being interconnected with an operation of the switch for operating a motor and a power source unit such as a battery or the like a conveyor belt unit for transporting an object through an transport rod by being rotated like a conveyor system of a factory a ball collecting unit having multiple protrusion parts formed at regular intervals like a hook capable of containing a ball at the top of the conveyor belt a driving tool unit which rotates and drives a belt wheel by an electric motor, wherein the belt wheel has a belt hung thereon in an endless manner a frame unit for constituting the components a wheel unit moving on a cart a basket unit for containing a ball and a control unit serving as an authentication unit for authenticating a ball by recognizing a ball by an image sensor. The size of a ball may differ due to a distance in the control unit, and thus the size is normalized to a predetermined size, and an unnecessary image is removed. When a ball is recognized through such a pre-treating step, a coordinate of a ball drawn to be recognized by the image sensor is recognized, and a servomotor or the like for adjusting an angle of a wheel outputs an electrical signal for the angle from the control unit to face the coordinate. The servomotor or the like integrated with the wheel moving on the cart is rotated in accordance with the outputted electrical signal, and the wheel is rotated by the electric motor toward a ball to approach the ball. When the ball is contained in the basket, a hole is formed at the bottom of the basket to feed the ball to a pitching device unit. The ball is launched by a pitching device, and a user can follow and pick up the launched ball as a game.COPYRIGHT KIPO 2017본 발명은 공놀이 장치에 관한 것으로서 배터리등의 전원부와 모터를 구동시키는 스위치의 동작에 연동하여 전기를 출력하는 스위치와 공장의 컨베이어 시스템과 같은 회전되어 운반대로 물건을 나르는 방식의 컨베이어 벨트부와 컨베이어 벨트의 상부에 공을 담을 수 있는 갈고리와 같은 돌출부가 일정 간격으로 다수 형성되어 있게
