This paper discusses the relation between lifelong learning and social reintegration/rehabilitation of vulnerable social groups analyzing the case of current or former of psychoactive substances. The aim of this survey is to explore current or former psychoactive substances users attitudes, perceptions and behavior and investigate how lifelong learning can contribute to their social reintegration. Data concerning the participation incentives to reintegration programs are also obtained. The sample consists of 93 persons, aged between 17-55 years, who are members of the social reintegration and therapeutic programs of KETHEA NOSTOS KETHEA INTERVENTION, KETHEA ITHACA, KETHEA CELL, members of the Transitional School KETHEA in Athens-Greece and KETHEA graduates. The data collection tool is a questionnaire developed by European Centre for the Development of Vocational Training (CEDEFOP, 2004). The statistical analysis results show that former users of psychotropic substances evaluate that lifelong learning helped the formation of their personality in their attempt to enter the labor market. Also, the participants believe that lifelong learning is achieved through formal (school or university), informal (at work) and non-formal learning (training sessions). Moreover, participants state that the cost of training programs, flexibility in working schedule and accurate information are important incentives for participation in lifelong learning programs.