The invention provides an auxiliary device used for basket shooting training, and in particular relates to the technical field of basketball sports goods. The auxiliary device is composed of mountingboxes, ball catchers, collision position detectors, a locator and a controller, wherein the ball catchers are mounted on the mounting boxes, and move on the top faces of the mounting boxes under the driving of motors inside the mounting boxes, when a basketball has collision with a basket, the corresponding collision position detector sends the collision position to the controller, the controllerdetermines the moving track before the basketball has collision by combining with the position of a trainee determined by the locater, then the rebounding direction of the basketball is determined bycombining with the position of the collision point on the basket, finally, the ball catcher on the mounting box corresponding to the rebounding direction is controlled to move, and thus the basketballis caught. The auxiliary device provided by the invention can rapidly and accurately catch the rebounding basketball having collision with the basket, the basketball can be automatically caught underany condition, the manual running for picking up the basketball is not needed, therefore, the physical power of the trainee is saved, and the training effect is promoted.