It is of concern that some children, even at a young age, are less engaged than others. Findings indicate that children of other ethnicities are less engaged in preschool activities than their Swedish peers. They also more commonly display behaviour difficulties. Such negative patterns tend to be stable over time. Provision of special support in preschool could change this; however children of other ethnicities have been found to be less supported in preschool, compared to Swedish children. This study aimed to explore longitudinal typical patterns of engagement and behaviour of children of Swedish and other ethnicities in Swedish preschools and the association with special support provision. Data were collected at three time points (n=197; 110 boys; 48 of other ethnicities; 15-57 months). A longitudinal pattern analysis revealed five stable types, examined regarding the influence of provision of support and proportion of children with other ethnicities.