To provide a detachable goal net for safely discharging a shot ball from a soccer goal when practicing soccer shooting by a group.

Nets for a receiving part and a guide part are three-dimensionally connected and installed inside an existing goal with a stopper and a sling. The receiving part of the net fixed inside the goal receives a shot ball and moves the ball to the guide part by the inclination. Further, the guide part connected so as to form a V shape with the receiving part discharges the ball to the diagonal front part of the goal.