Abstract: With the rapid development of artificial intelligence, large Language models (LLMs) become a key power of driving industrial revolution. LLMs have extremely broad application prospects in the smart hospitals. This paper made a brief introduction of the technology about LLMs, and systematically summarized the potential applications of LLMs in the smart hospitals based on the analysis of existing literature and case studies. The main obstacles and challenges of deploying the LLMs applications in the smart hospitals were outlined. An outlook from the technical and application perspectives on the future development of LLMs's application in the smart hospitals was proposed. This paper can offer valuable information and references for the future innovation and construction of the smart hospitals.