In the discipline construction, it took the lead in establishing the only research center for craniofacial development of orthodontics in China; Pioneering achievements have been made in the clinical non-surgical treatment of difficult cases of skeletal dentofacial deformity in orthodontics. Developed a new generation of straight wire orthosis and technology with independent intellectual property rights in China, which was listed as one of the ten-year 100 promotion technologies by the Ministry of Health; The quantitative staging method of cervical spine bone age was put forward for the first time. As the first author or correspondent, he published his works in three orthodontics journals included in SCI, which achieved a historic breakthrough in orthodontics in Chinese mainland. He is the first orthodontist in China. 199 1, becoming the only China doctor in China who has made outstanding contributions in the field of orthodontics. 1992 was granted special government allowance, and 1998 was awarded to young and middle-aged experts with outstanding contributions from the Ministry of Health. He has published more than 100 papers in domestic and foreign magazines, and is the scholar who has published the most papers in SCI journals in the field of orthodontics in China. Won provincial and ministerial scientific and technological achievement award 15, national patent 16, and published Yu Ben 10, including 4 chief editors. As the person in charge, he has undertaken the national "863" key scientific and technological projects, the "Tenth Five-Year Plan" key scientific and technological projects of the Ministry of Science and Technology, and the national natural science foundation projects. * * * has trained nearly 30 doctors.