随着经济的发展，城市功能的转变，双休日等长假的普遍实行，人口的老龄化趋势及一生就业时间的缩短，休闲观念越来越深入人心，人们对城市公共休闲空间的需求进一步增加。同时随着城市化进程的加快，城市人口的增加，城市公共休闲空间在改善居民生活质量和城市生态环境、促进城市经济持续健康发展等方面具有越来越重要的作用。但是，由于受传统经济理念的影响，人们忽视了城市公共休闲空间价值的存在。同时，由于城市公共休闲空间属于公共产品，无法形成需求市场，使其所产生的巨大的生态、经济、社会效益难以显化，导致城市公共休闲空间的建设缺少投资的内在利益驱动力，最终影响到城市公共休闲空间的产业化和可持续发展。因此，开展城市公共休闲空间价值及其测评技术的研究，是目前城市公共休闲空间保护、规划与建设中迫切需要解决的问题。理论上，本文促进了环境资源价值理论的发展和扩展了城镇规划理论；实践上，对城市公共休闲空间提供了基于综合效益测评和数量分析的运作模式，有效的规范了城市公共休闲空间的经营管理。 本文首先界定了城市公共休闲空间的概念，提出了城市公共休闲空间的三大服务功能：生态、经济与社会功能，并分析了各功能的含义；在此基础上确定了城市公共休闲空间的价值类型包括直接使用价值、间接使用价值、选择价值、遗产价值与存在价值，并分析了其内涵与特点。其次，结合西安市的资料，建立了城市经济产出(GDP)与城市公共休闲空间及其他驱动因子的回归模型，将其对城市经济发展的作用从GDP中剥离出来，进而计算出城市公共休闲空间的使用价值。然后分析了存在价值的含义以及存在价值的评估方法——CVM。以西安雁塔广场、西安钟鼓楼广场、西安环城公园为例，根据CVM技术原理，对西安市居民进行问卷调查。采用列联表分析和检验法 ，对调查者的年龄、受教育程度及收入水平等对WTP值的影响进行了相关分析。并从宏观的、时空的角度提出了影响城市公共休闲空间价值的四方面因素：发展阶段因素、环境因素、景观因素与可达性因素。最后分析了城市公共休闲空间价值的调控及影响机制中存在的问题，提出了提高城市公共休闲空间综合效益的对策建议。

With the developing of economy, the changing of urban function, putting into practice of two day-off, the aging tendency of population, and shortening of work time in one life, so more and more people are interested in leisure, and need more Urban Public Leisure Spaces. And with the acceleration of urbanization and the increase of urban population, Urban Public Leisure Space plays a more and more important role in improving the urban ecological environment and advancing the sustainable and healthy development of urban economy. However, we have ignored the value of Urban Public Leisure Space for a long period as affected by the traditional economic theory. At the same time, as a public goods, Urban Public Leisure Space cannot form a demand market, and its tremendous ecological effect, economic effect and social effect can not be embodied, so the investment of Urban Public Leisure Space construction lacks internal benefit driving, which will ultimately affect the sustainable development and industrialization of Urban Public Leisure Space construction. Therefore, the research on the value of Urban Public Leisure Space and its valuation technology is an urgent task in the preservation, planning and construction of Urban Public Leisure Space. Theoretically, it improves either the improvement of environment resource value theory and town planning theory; pratically, it provides the valuation model and quantitative analysis model of Urban Public Leisure Space value, and regulates Urban Public Leisure Space management. At first, the paper studied the concept of Urban Public Leisure Space, and three service functions (ecological function, economic function and social function) of Urban Public Leisure Space were pointed out, and their meanings were analyzed.Based on this, the paper analyzed the value of Urban Public Leisure Space, including the following types: direct using value, indirect using value, option value, bequest value and existence value. And the connotation and characteristics of each value type were analyzed.In addition, using the data of Xi’an, this paper established the regression model between GDP and Urban Public Leisure Space and other driving factors, and separated the attribution of Urban Public Leisure Space from GDP, accordingly calculated the use value of Urban Public Leisure Space. Then the meaning and the valuation method of existing value------CVM were analyzed. With the case of the Square of the Giant Wild Goose Pagoda Square; Bell and Drum Tower Square; and the Huancheng Park in Xi’an and in light of the principle of CVM technology, some Xi’an residents were surveyed with the questionnaire. Using association table analysis and test method, the research also made relative analysis of the effect of the subjects' age, education degree, and income level on the amount of WTP. And From macro and spatial-temporal aspects, developing stage factor, environment factor, landscape factor and accessibility factor, which affect the value of Urban Public Leisure Space were brought forward. At last, the problems of controlling and influencing mechanism of Urban Public Leisure Space value were analyzed, and in order to improve the comprehensive benefit of Urban Public Leisure Space, several countermeasures were put forward.