Parents can benefit from an understanding that how they parent, or their parenting style, provides a basis for many healthy developmental outcomes during adolescence. Understanding the different parenting styles and their impact on the parent-teen relationship and behavior outcome may help parents and their adolescence navigate adolescence more smoothly. Adolescence parents and adolescence (boys and girls) who referred by doctors for behaviour difficulties, poor parenting , and poor scholastic performance , (more than 6 months ), referred at Medical College NKPSIMS and LMH ,Nagpur were included in the study (n=162). An Analysis of variance showed t- value is significant at p < 0.05 significant (Means are different) different means say that there is an effect of level of negative parenting style ,attachment increased the number of behavior difficulties .Present study showed that adolescence behavior depends on parenting style and attachment and maintaining the guidelines for healthy relationships. As a result, most of the parenting style and attachment are lack respect and responsibility in guiding their own behaviors and making decisions that are truly in the best interest of their children, the children are showed different behavior – depression, anxiety, withdrawal, aggression, lack of interest on study, conduct problem, or hyperactivity, and most of the children showed lack of confidence, low Social skills, and low communication.