Temporomandibular joint disorder syndrome mostly occurs in young people. Its pathogenesis is not completely clear. The main features of this disease are pain in the joint area, clicking sound during exercise and dyskinesia when opening the mouth. Most of them are joint dysfunction and the prognosis is good. However, in rare cases, organic changes will also occur. Temporomandibular joint is closely related to masticatory muscles, ligaments, jaws and teeth, and only by coordinating with each other can it exercise its normal physiological functions. If dysfunction or structural changes occur, temporomandibular joint disorder syndrome may occur. Common related factors are: trauma factors, occlusion factors, systemic and other factors, neuropsychiatric factors may have a certain relationship with this disease. For example, some patients are irritable, nervous and easily excited. In addition, some patients have a history of rheumatism, and some are related to colds. Specific treatment measures include: correcting occlusal relationship through oral examination, blocking therapy, chloroethane spray combined with massage, acupuncture therapy, ultrashort wave, iontophoresis, electrical stimulation and magnetic therapy, and other local physical therapies have certain effects. At the same time of treatment, we should correct bad habits (such as unilateral chewing) and prevent excessive mouth opening.