Ni Xin, chief physician, professor, doctoral supervisor, dean of Beijing Children's Hospital. Deputy Director of Head and Neck Professional Committee of China Anti-Cancer Association, member of China Disabled Persons' Federation, and president of Pharmaceutical Enterprise Association of Beijing Economic and Technological Development Zone. 20 12 till now, member of otorhinolaryngology head and neck surgery branch of Chinese medical association. Editorial Board of Journal of Otolaryngology Head and Neck Surgery of Chinese Medical Association, Editorial Board of China Otolaryngology Head and Neck Surgery, Editorial Board of Chinese Medical Abstracts Otolaryngology Surgery. Editorial Board of National Planning Textbook Otolaryngology Head and Neck Surgery (Second Edition), Editorial Board of Chinese Journal of Ophthalmology, Otolaryngology and Standing Editorial Board of China Hospital Dean.

Beijing Children's Hospital Group, affiliated to Capital Medical University, was established, and children's hospitals in more than ten provinces across the country were combined to allocate and utilize existing medical resources together with Beijing Children's Hospital to realize graded medical care and two-way referral, and at the same time strengthen cooperation in scientific research projects. Has been committed to the practical application of translational medicine, as the project leader, completed a number of national scientific research projects at all levels. Three projects have been completed and seven projects are being presided over, with a cumulative amount of more than 20 million yuan. Published dozens of papers, including 5 SCI papers; There are 4 professional teaching materials as deputy editor-in-chief and 5 participating editors. Won a national science and technology achievement award, a second prize of Beijing science and technology progress award and a patent.

Specializes in the diagnosis and treatment of common and frequently-occurring diseases in otorhinolaryngology-head and neck surgery, head and neck tumor resection. Including thyroid surgery, parotid surgery, submandibular gland surgery, laryngeal cancer, hypopharyngeal cancer, oral cancer and other operations, neck lymph dissection and various neck tumor resection, the number of surgical cases reached thousands. Mechanism of cervical lymph node metastasis in laryngeal carcinoma and drug treatment of head and neck tumors.