Modular data center is a new-generation deployment form of data center based on cloud computing. In order to cope with the development trend of cloud computing, virtualization, centralization, high-density and other servers, modular design concept is adopted to minimize the coupling of infrastructure to the room environment. It integrates subsystems such as power supply and distribution, refrigeration, cabinet, air flow containment, cabling, and moving ring monitoring to improve the overall operation efficiency of the data center and realize rapid deployment, flexible expansion, and green energy saving. It is mainly used in the data center room of finance, securities, banking, transportation and other industries.