Abstract: The infection of 2019-nCoV can lead to overexpression of inflammatory factors, triggering cytokine storm and causing serious damage to the body. Glucocorticoids have anti-inflammatory properties and may be an effective treatment option. The use and dosage of glucocorticoids in coronavirus disease 2019 (COVID-19) remains controversial. This article reviews the theoretical basis, clinical evidence, debates and specific measures of glucocorticoids in the treatment of COVID-19, to provide reference for rational application of glucocorticoids in the future.