This study aims to develop motion tracking-based multi-sports game content that can prevent dementia through exercise for normal elderly people and elderly people with mild cognitive impairment by combining virtual reality and motion tracking technology with game content, analyze the exercise effect through clinical trials, explore the optimal dementia prevention method, and develop exercise tools and content that can be used not only at dementia care centers and nursing homes but also at home to prevent dementia in the elderly. The development of a motion tracking exercise tool is to develop a motion tracking tool that can express body movements in real time in a game by wearing it on the body. The goal is to develop a network-based motion tracking tool that can measure body movements and exercise volume. Through clinical trials and analysis, the goal is to find a way to minimize exercise tools while maintaining the exercise effect so that the elderly can wear them easily. In addition, unlike general games that only use hands, we propose three types of content that can maximize the competitive element and fun through sports genre game exercise content that can improve exercise effects and cognitive abilities while moving the whole body. Based on this, we propose a plan to build a platform that includes a management tool that can analyze clinical trial data to study the exact dementia prevention effect through exercise and explore the optimal dementia prevention method.