Leisure sports, differentiated from other leisure activities, are the combination of leisure and sports. Doing these sports makes people not only obtain physical and spiritual relaxation, forget about worries, and free oneself from routine life. Moreover, its effects for recreation, self-achievement, social contact, and health improvement are also appreciable. Hence, this research aims to discuss the definitions, category, functions of leisure sports, and factors of obstacles, so as to retrieve the reasons for hampering the development of leisure sports in Taiwan for benefiting the citizens to participate these sports and departments related to leisure sports to make proper policies in the near future.