Discussion on the Mechanism of Traditional Chinese Medicine Intervention on New Coronavirus Pneumonia Based on Literature/ 基于文献探讨中药干预新型冠状病毒肺炎作用机制

National Health Commission and National Administration of Traditional Chinese Medicine recommend integrated Chinese and western medicine for the treatment of coronavirus disease 2019 ( COVID-19) ． At present，the traditional Chinese medicine ( TCM) and its compounds for the clinical prevention and treatment of COVID-19 are complex and diverse，and the therapeutic mechanisms of TCM intervention are not clear． Through the analysis of the formulations applied in the treatment of COVID-19 in different stages，it is found that the possible mechanisms are to reduce the expression of inflammatory factors，inhibit cytokine storms，reduce the accumulation of oxidative stress free radicals and cell apoptosis，and improve the immune functions of the body，so that TCM play a role in the prevention and treatment of COVID-19． The potential mechanisms of TCM intervention in COVID-19 are discussed in order to provide references for subsequent clinical treatment and drug development．