BackgroundThe COVID‐19 pandemic posed a great challenge to paediatric dentistry, which confronted with the restriction of service and resource shortage.AimTo retrospectively analyse the information of children's dental online health consultation during the COVID‐19 pandemic in China, and to provide methods to distinguish between dental emergencies and non‐emergencies as well as their management.DesignWe collected all the online consultation information in Dept. of Paediatric dentistry, School & Hospital of Stomatology, Wuhan University, from 2 February to 31 March 2020, and extracted the information of age, gender, reason for consultation, description of symptom, and preliminary diagnosis of the children.ResultsA total of 474 online consultations of paediatric dentistry were included within 59 days during lockdown, and 190 (40.1%) were dental emergencies and 284 (59.9%) non‐emergencies. Of 190 emergency consultations, 186 (97.9%) showed swelling, pain, and trauma with or without systemic symptoms. Among 284 non‐emergency consultations, retained primary teeth (n = 126) and orthodontic consultation (n = 53) were the most common reasons for consultation.ConclusionThe paediatric emergency and non‐emergency problems should be clearly distinguished and sufficient instructions provided in the special period of COVID‐19. Priorities also should be set to deal with urgent conditions after the release of lockdown.