The device that is the subject matter of this patent has been developed to automate the release of balls in the game of roulette and consists in a device provided with the necessary parts so that the player can trigger the release. This model allows releasing the ball both clockwise and anticlockwise by detecting the ball and its management via hardware/software. It also provides the possibility to control the power automatically and incorporates a system for raising the release element to move it away from the possible rebound area. Likewise, the device can be coupled to the roulette without altering the physical integrity thereof, and can be removed at any time. It comprises a propelling element, which is a motor, that will provide the ball with the necessary energy so that it makes the required number of turns.