This kit is used for quantitative determination of Novel Coronavirus (2019-NCOV)IgG antibody in human serum plasma sample in vitro. By detecting the content of Novel Coronavirus (2019-NCOV)IgG antibody in the sample, this kit can be used as an auxiliary means to determine the experience of virus infection in the body and the immune response ability of the body to novel Coronavirus (2019-NCOV) after virus infection, and can be used as an auxiliary basis for determining the vaccine injection requirements