This study investigated the role of maternal socialization and temperament in Turkish preschool children's emotion regulation. Participants consisted of 145 preschoolers (79 boys, 69 girls; M[subscript age]= 62 months), their mothers, and daycare teachers from middle-high socioeconomic suburbs of Istanbul. Maternal child-rearing practices and emotion socialization behaviours were examined together as interconnected constituents of parenting in relation to emotion regulation skills in young children. Mothers completed a set of questionnaires that measured their child's emotion regulation and temperament as well as their own emotion socialization and child-rearing behaviours. Teachers also completed a scale that measured the child's ability to regulate emotions. Hierarchical regression analysis showed that child's reactivity negatively and persistence positively predicted emotion regulation. The interaction of maternal responsiveness and child approach-withdrawal also significantly predicted emotion regulation. Simple slope tests were conducted slicing the data in both directions. In the first instance, for children low in Approach, the simple slope of Responsiveness on emotion regulation score was significantly positive. In contrast, for children high in Approach, the simple slope of Responsiveness on emotion regulation score was not significant. In the second instance, for mothers average in Responsiveness, the simple slope of Approach on emotion regulation score was significantly positive. In contrast, for mothers high in Responsiveness, the simple slope of Approach on emotion regulation was not significant. These findings were considered within an interactional model in which positive parenting and inhibited temperament are significant predictors of emotion regulation in Turkish preschoolers. (Contains 5 tables and 1 figure.)