The purpose of the article is to outline a comprehensive conceptual framework for life skills interventions by integrating aspects of Basic Needs Theory (BNT) and Life Development Intervention (LDI). In particular, we advocate the integration of (a) the three basic psychological needs of autonomy, competence, and relatedness and (b) the needs-supportive motivationalclimate from BNT with the LDI framework. When these basic psychological needs are satisfied, people experience positive psychological development and optimal psychological well-being—the stated outcome goals of most life skills programs. Without the development of a conceptual framework, it is difficult to determine whether individual life skills interventions achieve optimal psychological well-being. By developing this framework, we seek to identify and articulate the key underlying psychological mechanisms (i.e., basic needs of autonomy, competence, and relatedness) that contribute to optimal human functioning and positive psychosocial development in all life skill programs. The implications for counseling psychologists’ research and practice are also considered.