This study investigated whether academic achievement motivation and social identity explain variation in children's conformity to positive academic behaviors (n = 455 children in grades three through five). Structural equation modeling suggested that academic value and peer group academic norms were positively related to academic conformity. Specifically, children who enjoyed academic pursuits and who belonged to academically-inclined peer groups were more likely to conform to novel academic behaviors than children who did not. Additionally, academic value moderated the relationship between peer group norms and conformity, implying that, for students who do not value academics, belonging to a peer group with high academic norms will lead to more conformity to academic behaviors than belonging to a peer group with low academic norms. In contrast, analyses suggested that some aspects of achievement motivation and social identity are unrelated to academic conformity. Implications for encouraging positive academic behaviors in middle childhood are discussed.