Using the smart system for rehabilitation training, the elderly can follow the instructions and demonstrations of professional coaches to perform interactive rehabilitation exercises suitable for the elderly, such as stretching, balance, muscle strength, aerobics, etc. There are different levels of difficulty to choose. The training content will also be updated regularly. The smart system detects the user's body movements through AI and provides real-time feedback, and encourages the elderly to engage in more exercise. Exercising in the mirror can also give visual feedback, allowing the elderly to improve the accuracy of their movement.