This kit is used to qualitatively detect in vitro suspected cases of pneumonitis infected by a new type of coronavirus. The PCR reaction solution contains 2 sets of specific primers and fluorescent probes for specific detection of targets, and an additional set of specific primers and fluorescent probes is used as the internal standard control of the kit for detecting endogenous housekeeping genes. Lowest detection line:200copy/mL Specificity: this kit has no cross-reaction with hepatitis B virus, hepatitis C virus, staphylococcus aureus, gram-positive bacteria, shigella bacillus, influenza A, influenza B, enterovirus and human genome DNA/RNA. Precision reference products: After repeated 20 times, the amplified Ct CV of each fluorescence channel was no more than 5%.Ct CV 5%