At present, the epidemic situation of COVID-19 in China is distributed in many places, and the latest health management measures have been promulgated in many places, including 14+7, 7+7, 3+1,2+ 14, as well as "home isolation management", "home health monitoring" and "closed control". COVID-19 nucleic acid was detected on 1, 2, 3, 4, 7 and 14, in which 14+14 was observed at home. Mainly for beginners in high-risk areas. That is, 14 days of centralized isolation medical observation (1, 2, 3, 4, 7, 14 days of COVID-19 nucleic acid detection) +7 days of home health observation (2, 7 days of nucleic acid detection). Mainly, 14+7, that is, 14 days of centralized isolation medical observation, plus 7 days of home health observation, is implemented for the entry (return) personnel who come from or refer to the close contact and management of medium and high risk areas. That is, centralized isolation medical observation for 7 days (COVID-19 nucleic acid detection on days 1, 2, 3, 4 and 7)+home health observation for 7 days (nucleic acid detection on day 7). Mainly for sub-secret personnel. That is, 3 days of home health observation (or centralized isolation)+1 1 daily routine health monitoring, 1, 3, 14 days of nucleic acid detection and body temperature report. That is, check the negative proof of nucleic acid detection within 2 days (48 hours)+14 days of daily health monitoring.