BackgroundSince the beginning of the COVID-19 pandemic, there has been a worldwide increase in the incidence of child abuse. Studies show that the pandemic context contributes to exacerbate several risk factors usually associated with the use of violent disciplinary practices. ObjectiveThis study aims to better understand the role of parental burnout and child perceived as difficult as a parental stressor in the link between fear of COVID-19 and the use of parental violence (minor and severe physical violence and repeated psychological aggression). ParticipantsThe sample includes 467 mothers living in Québec (Canada) with a child aged 5 or less. MethodAn online questionnaire, administered one year after the beginning of the COVID-19 pandemic in Québec (March to May 2021), was used to measure parental violence, parental burnout, parental stress related to the perception of the child as difficult and fear of COVID-19. Serial mediation analyses were performed. ResultsThe main analyses confirmed the indirect association between fear of COVID-19 and the three forms of parental violence studied, through parental burnout and the child perceived as difficult. Unlike physical violence (minor and severe), the association between fear of COVID-19 and repeated psychological aggression is explained only by parental burnout. ConclusionsThis study has identified new mechanisms that allow a better understanding of processes underlying parental violence during the pandemic. It also shows that parental violence can also occur in low-risk families. It is crucial to develop strategies to prevent the use of violent disciplinary practices in future socio-health crises such as the COVID-19 pandemic.