The new crown antigen test is a home self-test, the current test time is relatively short, usually about 15 minutes can produce results. The New Crown Antigen test kit can only be used as a complementary means to the New Crown Virus Nucleic Acid Test. Residents can conduct the test at home by themselves, and the result can usually be obtained in about 15 minutes. Try not to exceed the time limit for too long, or the interpretation of the data will be affected, and the result of the test may be compromised. If the antigen test reveals that there is one dark and one light or both lines are red, it should be considered positive, that is, suspected to be infected with the new coronavirus. In this case, the community should be notified immediately and centralized quarantine should be carried out, and consecutive nucleic acid tests should be carried out, and then the case will be dealt with according to the diagnostic results. When residents perform antigen testing on their own, they must consult a doctor first and know how to perform the test, and they need to be sterilized before the test so as not to contaminate the specimen.