Rapid antigen self-test kits for neococcal pneumonia are available and can be self-tested, but care needs to be taken to do this correctly. The routine screening method for new crown pneumonia is to conduct nucleic acid testing, but there is a certain inconvenience. At present, many places in China have already had the rapid antigen self-test kit for new crown pneumonia, which can be self-tested, convenient and quick, and can be used as a means of initial screening. When using the rapid antigen self-test kit, you should read the instructions carefully, operate correctly and read the results. The test is positive when both “C” and “T” show color. Negative when “C” shows color but “T” does not. No color at “C” is considered invalid. If you have a history of high-risk exposure or if you have suspected symptoms, self-testing can help to detect and isolate the disease early. Self-test found abnormalities should be well protected, and promptly reported to the community epidemic prevention department. Tips] In this article, “new coronavirus pneumonia” and “new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.