At present, there is no specific and effective antiviral therapy.In this study, an open, prospective/retrospective, randomized controlled cohort study was designed to compare the efficacy of three antiviral drugs in the treatment of 2019-nCoV pneumonia by studying the efficacy of abidol hydrochloride, oseltamivir and lopinavir/ritonavir in the treatment of 2019-nCoV viral pneumonia, and to explore effective antiviral drugs for new coronavirus. To provide reliable evidence-based medicine basis for the treatment of viral pneumonia caused by new coronavirus infection.