为了给政府部门投资建设无障碍环境提供成本收益评估的依据，利于政府精准施策，从经济学角度定量测算了无障碍环境的经济价值，阐明了无障碍环境与高质量经济发展的关系，明确了无障碍环境拉动经济的机理。总体而言，无障碍环境能够使障碍群体更好地工作和生活，提高残疾人就业率，延长老年人有效劳动寿命，进而增加劳动力供给，提高经济增速，扩大经济总量。在经济增速方面，设置两个对照组，分别为现实人口条件下的我国经济和完美无障碍环境下有效劳动寿命延长5年条件下的我国经济，利用Cobb-Douglas生产函数，对比组间经济增速差异。结果显示：我国长期经济增速将提高0.19%，相当于现阶段国内生产总值（Gross Domestic Product, GDP）每年多增加1 883亿元。在经济总量方面，假设完美无障碍环境可使残疾人达到与健全人相同的就业率，进而计算残疾人创造的经济价值。结果显示：我国GDP每年将增加4 984.3亿元，占GDP总量的0.503%。老年人有效劳动寿命延长也有类似效果。

In order to provide a basis for cost-benefit assessment to government sectors in investing in accessible environment construction, which was conducive to the accurate implementation of policies, the economic value of accessible environment was quantitatively measured from an economic perspective, the relationship between accessibility and high-quality economic development was expounded, and the mechanism of accessible environment driving economy was clarified. In general, accessible environment could make the disabled groups work and live better, increase the employment rate of the disabled, prolong the effective working life of the elderly, increase the labor supply, increase the economic growth and expand the economic aggregate. In terms of economic growth, this paper set up two control groups, namely, China′s economy under real population conditions vs. the economy in which the effective working life was extended by 5 years in a perfect accessible environment. The Cobb-Douglas production function was used to compare the differences in economic growth between two groups. The results show that under a perfect accessible environment, China′s economy will grow at a long-term acceleration of 0.19%, which is equivalent to an annual increase of 188.3 billion CNY in GDP(Gross Domestic Product) at this stage. In terms of economic aggregate, this paper assumes that perfect accessibility can make disabled people have the same employment rate as healthy people, so as to calculate the economic value created by disabled people. The results show that China′s GDP will increase by 498.43 billion CNY annually, accounting for 0.503% of GDP. The effect of prolonging the effective working life of the elderly is similar.