Objective] Making a discussion on academic features ofYi Lin Kou Pu Liu Zhi Mi Shu. [Method] With the research methods of philology, we collect Qing transcript ofYi Lin Kou Pu Liu Zhi Mi Shuand analyze its academic features. [Result]Yi Lin Kou Pu Liu Zhi Mi Shuwas additionally compiled, supplemented and annotated by Zhou Sheng, a famous doctor of the Qing Dynasty, on the base of Yi Lin Kou Pu which was composed by Lu Qi. Within four volumes, the contents of the book contain Medicine, Surgery, Gynecology, Pediatrics, etc. The diagnosis and treatment based on syndrome differentiation and Chinese herbal prescription in this book have their own characteristics. That is: theories from different schools make arguments on the facts; six treatments of syndrome lucidly expose the essential points; secret prescriptions and Chinese herbs are widely collected; opinions and knowledge from his teacher grasp the essence of the problem and bring out the crucial point. [Conclusion]Yi Lin Kou Pu Liu Zhi Mi Shu is a distinctive and only existing medical book with high academic value and practical significance.