The antigen test for Neocoronavirus is to be used in a standardized manner according to the steps in the instructions. Wash your hands before using the anticoronavirus antigen reagent, then clean your nasal passages with clean toilet paper and unpack the swab. When using the swab test, head slightly tilted, one hand holding the end of the swab against the side of the nostrils into, along the bottom of the lower nasal tract backward slowly into about 1.5 cm, stick to the nasal cavity to rotate 4 ~ 5 weeks, stay time of not less than 15 seconds, followed by the use of the same is the finger on the other side of the nasal cavity to repeat the same operation. After collecting the sample the swab is placed in the liquid and then squeezed to dry the liquid, dropping the liquid vertically into the hole where the sample is tested and waiting for the test result, if two bars are positive. The antigen test for neocoronavirus needs to be performed according to the specification to avoid false positive results. In case of a weak positive or positive result, it is necessary to report to the community as soon as possible, and isolate the patient as soon as possible in the hospital, and further improve the neocoronavirus nucleic acid test for clarification.