This year, the new crown pneumonia outbreak continued to deteriorate, the cumulative number of confirmed cases have been more than last year, the death cases in local time on September 7, break through the 650000 mark. This round of outbreak and the autumn season time, number of confirmed cases in children's. At the same time, the United States between the management of the school, parents and students are still bickering about campus masks. In the outbreak, the worsening in children diagnosed cases increasing proportion in the total number of cases, has become the biggest victim. Children number of cases surge, campus mask makes difficult to implement the related with the United States.