AbstractAggressive behaviors in early childhood may indicate future violence, so effective intervention measures should be taken on time to promote children's physical and psychological health. Based on sampling survey data from Jintang County in Sichuan Province of China, this paper analyzes the mechanism of rural children's aggressive behaviors from the perspective of peer influences and examines the role of parent involvement in it. The results show that the deeper the degree of deviant peer affiliation, the poorer the psychosocial adaptation of rural children, which is more likely to lead to aggressive behaviors. Parent involvement can effectively inhibit the aggressive behaviors of rural children arising from deviant peer affiliation.