With the development of exercise training and competitions, especially with the emergence of modern media technology, action skills of various sports tend to be perfect. As a result, the tactics composed of action skills is also gradually improved. Among many sports or games, if a new action is used to defeat an opponent, it will be studied and imitated. At the same time, defensive tactics against this action will be worked out. This research is just focused on the methods to improve the ability of energy supply in the training of taekwondo. As competitive level is rising fast and competition is heating up, taekwondo athletes should be guided to master the scientific methods of energy supply which ensure the application of tactics and skills to make better performance. With high antagonism and complexity, taekwondo places greater demands on athletesÂ physical efficiency, which is the key of this thesis. In the training, the majorities of coaches pay high attention to athletesÂ physical training, so it's urgent to study the methods to improve the ability of energy supply in the training of taekwondo such as the improvement of energy supply through strength training, aerobic training and flexibility training. Effective training methods should be developed according to practical needs to lay a foundation for athletesÂ more excellent performance in competitions and provide a strong theory support for researchers.