In the end of 19(superscript th) century, based on hard working of predecessors, orthodontics has more glory development; many orthodontic theory and appliances were displayed. Among them, Edward Angle, 「The father of modern orthodontics」, played the most important role. Owing to his passion and devotion of orthodontics, the profile of orthodontics was getting more and more clear. There are so many conflicts and controversy during the development of orthodontics. However, it is the agitation that bring the orthodontics whole new appearance, also with the improvement of clinical efficiency, the orthodontics is getting more close to the need of patient and the ideal treatment results.