PURPOSE: A simple basketball ball game machine is provided to improve nimble and endurance capacity and to reduce stress. CONSTITUTION: A simple basketball ball game machine is divided into a front body(2) and a rear body(4). The floor side(6) is formed to downwardly slope between the front body and rear body. On the top of the basket support stand(20), a basket(10) is equipped. The basket is comprised of both side nets and a top net. A side bouncing prevention unit is installed on the upper end of both side nets. A front bouncing prevention unit is installed in the front of the side bouncing prevention unit. A rim(40) is installed inside the basket. A vertical movement gate(50) is installed on the floor of the front bouncing prevention unit.