Automatic ball launching device interacting with pet

The invention belongs to the technical field of pet toys, and particularly provides an automatic ball launching device interacting with a pet. The automatic ball launching device is mainly composed of a catapulting channel, a catapulted ball, a catapulting starting switch and a catapulting assembly. A throwing-in opening and a catapulting hole are formed in the top and the end of the catapulting channel respectively and matched with the catapulted ball. The catapulting assembly is mainly composed of a motor, a transmission gear set with an incomplete-tooth gear, a striker, a rack and a spring. The incomplete-tooth gear is meshed with the rack, the rack is arranged at the bottom of the catapulting channel in a sliding mode and fixedly connected with one end of the right-angle striker, the other end of the striker penetrates through the catapulting channel and is limited in the catapulting channel, one end of the spring is fixed to the catapulting hole, and the other end of the spring is fixedly connected to the rack. The ball launching device is high in launching efficiency, small in kinetic energy loss, low in power consumption and compatible with launched objects of various seizes. The pet can throw the ball into the launching device by itself, automatic lunching is achieved, and the pet can play with itself when an owner can not accompany the pet.