Design a hand function rehabilitation assessment and game system based on LeapMotion sensor and Unity3 D game engine. Evaluation system sets up four evaluation items

according to clinical hand function rehabilitation medicine. The evaluation results are obtained by comparing the acquired corresponding feature points with the clinical threshold. The game system according to items set by evaluation system designs rehabilitation game which has targeted training. Test results show that the system has a good entertainment

interactive and avoids the separation of assessment and training. This system has a good reference value for research and development of rehabilitation system.