Abstract Childhood overweight and obesity has become a serious public health problem. Family, as the primary environment in which children grow up, is closely related to their overweight and obesity. With the continuous development of social economy, grandparents gradually participate in family feeding, and play an imortant role in family feeding. The oresent paper systematically reviews grandparents feeding awareness, feeding behaviors, feeding styles and feeding environment choices, in order to provide a reference for improving intergenerational feeding and reducing the incidence of overweight and obesity in children.