Concentration plays an important role in many aspects of daily life, which is closely linked to everyone. At present,the concentration training is subjective and boring. In this paper, the original brainwave signal and the degree of concentration are extracted,the degree of focus and the speed of the hollow cup motor are combined to design and implement a brainwave-focused game device. It uses distance measuring sensors to determine the game situation, enhancing the interest, and exercising participants' attention and controlling ability.