With the development of medical informatization, smart medical treatment is booming, and more and more hospitals are accelerating the implementation of the overall construction based on the information platform to improve the service level and core competitiveness of hospitals. Medical technology is changing with each passing day. A large number of digital medical precision equipment has been put into use. At the same time, information such as medical records has also become paperless and stored in information systems. As a place to save lives, the equipment used in the hospital has strict requirements for the continuity and reliability of the power supply, and cannot be interrupted for a moment. The use of UPS has become the key to protecting the important equipment in the hospital.