During the COVID-19 epidemic, Wuhan city had the hardest hit in China. The treatment capacity of the local medical system exceeded due to the rapid growth of COVID-19 cases. As a result, a considerable part of diagnosed patients could not be admitted to hospitals for isolation and treatment in time, causing the risk of spreading in the community. To effectively achieve the goals of controlling the source of infection by cutting off the transmission route, increasing the cure rate and reducing the mortality rate, Wuhan has reconstructed several makeshift hospitals based on large public places, which can admit hundreds of people at the same time. Makeshift hospitals are used to isolate and treat cases with mild to moderate symptoms, and provide services of frequent monitoring, rapid triage, basic medical care, essential living security, social engagement, and isolation.