At present, the rapid integration and development of internet technology and medical services have made internet diagnosis and treatment an important part of medical services, and it is also an inevitable development trend of future diagnosis and treatment services. In order to meet the needs of patients for more timely, accurate and convenient medical treatment, West China Hospital of Sichuan University has innovated the internet diagnosis and treatment mode, adopted the innovative mode of diversified online services, pre-treatment mode, expert team mode, specialized medical consortium platform and whole process management, optimized medical resources and structure, promoted regional medical association linkage, and improved patients’ medical experience. The West China Internet Hospital of Sichuan University takes the whole process ecological closed-loop of “medical+health” as the goal, has greatly improved the efficiency and quality of diagnosis and treatment, which is of great significance for the positioning and development of internet hospital. This article will share the construction experience of West China Internet Hospital of Sichuan University.