Objective:To investigate and analyze the knowledge comprehension,attitude,and prevention and control behavior of parents having children under 18 years old during coronavirus disease 2019(COVID-19) pandemic period,so as to make scientific and tar-geted health education strategies for medical personnel to better understand needs of children’s parents. Methods:The snowball sam-pling method and the self-designed questionnaire were used to collect parents’ opinion having children under 18 years old,and a total of 1 020 questionnaires were filled through the Internet. Results:Among all patients,73.2% comprehended COVID-19 and relat-ed knowledge,47.1% had a positive attitude towards the prevention and control of COVID-19,and 87.5% had a good behavior in preventing and controlling COVID-19. The comprehension rate of prevention to new children-related coronavirus infection was about 50%;36% children had adverse emotions such as emotional instability,loneliness,and anxiety;67.5% children’s parents had adverse emotions such as emotional instability and anxiety. Results of Pearson correlation analysis showed that there was a positive correlation between scores of knowledge comprehension,attitude,and prevention and control behaviors. Results of univariate analysis showed that only occupation of children’s parents had an influence on their knowledge,attitude and behavior(P<0.05). Conclusion:Medical per-sonnel can popularize the prevention knowledge of COVID-19 related to children through various channels,focusing on the psycho-logical problems of children and parents,and providing targeted guidance.