Professor Qi Daoyi, a famous stomatologist and oral and maxillofacial surgeon in China, a member of the Communist Party of China, an academician of the International College of Dentistry, a former standing committee member and secretary of the Stomatology Society of Chinese Medical Association, a former executive director and deputy secretary-general of the Chinese Stomatology Association, and a former director of the Department of Stomatology of Beijing Tongren Hospital affiliated to Capital Medical University, died in Beijing at 7: 6 am on June 4, 2022 at the age of 91 due to ineffective treatment.