Li Ting?an thought that rural health was a social and economic problem， rural health was related to the revival of rural economy in modern China； Practicing rural public health， public medical system must be adopted， health administrative system should be established； It was “often getting twice the result with half the effort” that choosing infectious diseases that are easy to prevent； Medical work was carried out for the purpose of rural health and agricultural promotion； Because of the high cost of hiring and the lack of funds in rural areas， the idea that “Chinese rural public health undertakings can not be solely dependent on doctors and nurses” was made.