The NeoCrown virus nucleic acid test is somewhat more accurate compared to the antigen test. The main features of the NeoCrown antigen test are that it is faster and easier to perform. Antigen test is a kind of self-testing for pathogens, which is a complementary means of nucleic acid testing, mainly applied to suspected patients and asymptomatic infected people, if the results of antigen test are abnormal, nucleic acid testing is still needed for review. The results of antigen test are affected by many factors, including substandard sampling, contamination of the reagent kit, incorrect use of the method will affect the results of antigen test, in the use of the use of strict accordance with the instructions. Nucleic acid test is mainly through the collection of nasopharyngeal secretions, in the laboratory to detect whether the pathogen infection, the results are more accurate than the antigen test. Nucleic acid testing is recommended if conditions permit. When the results are abnormal, it is important to report them promptly and to take personal protective measures, not to go to public places and other densely populated areas.