Pharyngeal swab sampling generally refers to the sampling of a pharyngeal swab for the New Crown Pneumonia Nucleic Acid Test at the correct sites of the two palatal arches, the pharynx, and the tonsils. Pharyngeal swabs are usually taken with the subject’s head slightly tilted back and the mouth opened wide at about the level of the collector’s viewpoint to fully expose the pharynx. Samplers need to do their own protection, with a sterile sampling swab in the two palatal arches, pharynx and tonsils and other places to collect the surface secretion of the repeated wiping 2~3 times, and then gently remove the swab, the removal process to avoid touching the tongue, uvula, oral mucosa and saliva and other debris, so as not to affect the quality of the specimen. The swabs were then broken off at the front and placed into a sample tube labeled with an exclusive bar code, the remaining discarded swabs were thrown into a yellow medical waste bin, and the collected specimens were placed in the sample storage area. In order to improve the accuracy of pharyngeal swab nucleic acid test, the examinee is instructed not to eat for two hours before the test, and not to drink water for half an hour before the test, so as to avoid the failure of the specimen due to eating and drinking, in order to ensure that the pharyngeal swab nucleic acid test has a high degree of accuracy. Tips] The “new coronary pneumonia, new coronary virus pneumonia” mentioned in this article has been renamed to “new coronary virus infection” on December 26, 2022, as announced by the National Health Commission.