The construction of smart hospitals will help improve the medical experience of patients and the efficiency of doctors. Smart hospitals can also realize medical smart auxiliary diagnosis decisions and effectively promote the improvement of national health standards and the development of the medical field. China is the world's most populous country, and its smart medicine is developing rapidly. The scale of the trillion medical market has a huge economic and market prospect. It is of great significance to adequately understand the construction and development of smart hospitals in China. This paper focuses on the construction of smart hospitals in China, the definition, connotation, and significance of smart hospitals were elaborated, and the problems in the construction of smart hospitals in China. Reviewed the development stages and research status of smart hospitals construction, analysed problems, technologies, and challenges that exist in the construction of smart hospitals. Finally, the three application scenarios of "Smart medical care", "Smart Service" and "Smart Management" were analysed to provide reference for the construction of smart hospitals based on huge data, artificial intelligence, Internet of Things, and 5G technology.