Leisure sports is a combination of leisure and sports. Urban leisure sports are the instinctive needs of urban residents to cope with the “urban disease.” It caters to the current urban value demands of optimizing residents’ lives and conforms to the development of “Better City, Better Life” trend. This article comprehensively uses literature research, comparative research, system analysis, questionnaire surveys, and case studies to explore the relevant theories of urban leisure sports. Taking Xi’an as an example, we carry out a practical survey of urban leisure sports, including the expression of needs and behaviors of urban residents’ restrictions, feedback on the supply of urban leisure sports, and analysis of its existing problems. Investigation results show that ecological civilization and the development of urban leisure sports are an interactive process. Ecological civilization is the external thrust of the vigorous development of urban leisure sports, and leisure sports is a means of ecological civilization construction. “For good health” is the primary factor that stimulates people’s leisure sports behaviors. Among the restrictions that affect urban residents’ participation in leisure sports, lack of partners is the main interpersonal restriction. The current development of urban leisure sports is faced with problems such as the squeeze of urban life and ecological space, poor air quality, lack of leisure sports facilities, insufficient opening of leisure sports resources, and insufficient guarantees for leisure sports funds. It is recommended to optimize the urban “production, living, and ecological” spatial layout and continuously extend the urban leisure and sports space through the organic renewal of urban space, spatial reuse, and rational development of vertical space. On the basis of understanding the laws of urban development, the exploration of the laws of the development of urban leisure sports must coordinate with the development of urban ecology, economy, and culture.