摘要:Problem Statement:Aggressive behavior is a problem in any society. Aggression is further defined as destructive, injurious, hostile and often caused by frustration. Knowing the factors that influence aggressive behavior as well as how aggression is expressed are vital to developing an understanding of it.Purpose of Study:The research purpose is to look into the relationship between maternal parenting styles and child's aggressive behavior.Research Methods:In a correlation study, 380 individuals who were selected using cluster sampling among from male & female high-school students of Tehran was tested with regard to the parenting styles and aggressive behaviors.Findings:Analyzing the acquired data demonstrated that mother's authoritarian parenting is positively correlated with adolescents’ aggression; however, authoritative parenting style is negatively correlated with adolescent's aggression. The results also revealed that mother's indulgent parenting is negatively correlated to adolescent's aggression.Conclusions:The results presented in this study was explored that maternal aggression is reversely correlated to child's aggression, results obtained on liberty was found to correlate negatively to aggressive behavior, It can be observed that mothers sometimes unconsciously teach their offspring to apply dictatorial and coercive strategies to achieve their goals. They may display some unnecessary behaviors such as criticizing and castigating and then exhibit avoidant behaviors to escape unpleasant situation. There is strong emerging evidence for the capacity of functional and well-adjusted families to successfully moderate various developmental threats and reduce the chances of maladjustment in children at risk.