The promotion of leisure-time physical activity has emerged as an important initiative for public health due to its importance in enhancing the life quality of modern mankind. Exercise psychology concerns about the understanding of exercise behavior and related psychological function in physical activity. The course covers three essential perspectives with the first part to focus on the basic concept of exercise psychology, scope, historical past and importance to human’s growth. The second perspective covers topics on exercise and its relationship to mental health and life quality development. The last perspective relates to research works in exercise psychology, theories in behavioral science and intervention strategies to increase exertion in leisure-time physical activity. Teachers from physical education, health educators and youth workers will find the course useful as it covers the theoretical aspects of exercise behavior, academic discourse on motivation, self-efficacy and personal development and its relationship to the development of exercise behavior. The establishment of knowledge base sport participation expects to enhance the later research works in sport behavior development and regular interests in physical activities.