Traditional badminton training assistance systems are difficult to capture the continuity of badminton hitting movements due to simple sensors and image processing techniques,which affects the accuracy of motion analysis and training feedback.Therefore,this study designed a new badminton training assistance system based on motion capture technology.The system hardware adopts an action capture sensing device and dual control power supply to ensure stable operation.The software accurately captures hitting movements,provides detailed technical analysis and personalized training suggestions,and establishes a teaching resource library to optimize training.The test results show that the system significantly improves the hit rate and training effectiveness.