A football game machine includes a goal device divided into multiple strike areas that respectively indicates different score marks. Each strike area has multiple pressure sensor mounted therein. Two casing mounted to two opposite sides of the goal device. Each casing has an inner side having a series of photoelectric cells mounted thereon. The football game machine can calculate the speed of the flying ball by using the time difference of the photoelectric cells and the pressure sensor. A display device is mounted on the goal device for displaying the total scores and the speed of the flying ball. A ball recycle device is mounted in one of the two casings. A football is connected to the ball recycle device via a rope. The ball recycle device can recycle the ball when the game is finished and release the rope before playing the ball.