This paper aims to explain youth addiction process, and the family and friends` attribution in the process. The research method was qualitative and theory based on experience. The sample consisted of 12 youth addicted to amphetamine are chosen in purposive sampling, and are carefully interviewed. The topics gained by open and pivotal coding in several steps based on findings. In order to obtain findings, the theory concepts are expanded by rotation method in theories and data. The expansion uses social damage patterns and parent style. Found topics in this research included main category of parent style, social learning and sterilization beliefs about addiction. The main category has subcategories as following: Subcategories of parent style are: Parents and children relation, the parents` relation, inflexibility in style and family. Social learning subcategories included: the addicted friends and his presence in family. Sterilization beliefs` subcategories are: suitable definition, justifying action, no responsibility for the outcome. Parent styles and family assets in one hand, and joining to drug users friendly groups on the other hand, make an interest in using drug and then the interest makes some beliefs which encourage one to use drug curiously and amused but little by little, sterilization beliefs about addiction will be made in one which leads to force, voracity and diversity in use.