Abstract: Objective To understand the epidemic characteristics of public health emergencies in schools of Chongzuo City in Guangxi Zhuang Autonomous Region from 2015-2021,so as to provide the basis for guiding schools to formulate prevention and control countermeasures for public health emergencies. Methods Based on the data of emergencies reported by national Public health emergency management information system and counties（cities,districts）,the information of school public health emergencies in Chongzuo City from 2015 to 2021 was collected and sorted out for statistical analysis. Results From 2015 to 2021,totally 59 public health emergencies were reported in Chongzuo City,including 43 school incidents,accounting for 72.88%. Among school incidents,there were 37 emergencies of infectious diseases,all of which were intestinal and respiratory infectious diseases,and top three diseases in attack rate were influenza（10.72%）,hand-foot-mouth disease（5.74%） and chicken pox（3.15%）. There were six emergencies of food poisoning,accounting for 13.95%,including three emergencies of microbial poisoning and three emergencies of plant food poisoning. The distribution showed two peaks appeared from March to May and from October to December. The emergencies occurred mainly in nursery institutions（48.84%） and primary schools（44.19%）,with the highest attack rate in nursery institutions（5.36%）,followed by primary schools（4.28%）（P<0.01）. There were statistically significant differences in attack rate among different regions and types of schools（all P<0.01）,the attack rate in rural nursery institutions（10.21%） was higher than that in urban institutions（3.91%）,and that in urban primary schools（4.62%） was higher than that in rural areas（3.81%）. The median intervention time was seven days,and the median duration was eight days,indicating a positive correlation between them（r=0.767, P<0.01）. Conclusion The nursery institutions and primary schools are high-incidence places of school public health emergencies in Chongzuo City,and it is necessary to take various prevention and control measures to control the epidemic situation for key populations and key diseases in the high-incidence season.

Key words: Public health emergency, Epidemiological characteristics, School, Infectious disease, Border area