Public interest litigation is a major popular project and human rights protection system to promote the modernization of national governance system and governance capacity. Focusing on strengthening the supervision of the implementation of laws on the construction of accessible environment，the procuratorate have continuously expanded the scope of public interest litigation cases from the accessibility of travel to the accessibility of information and then to the construction of accessible environment. The mode of supervision and handling cases has been continuously deepened from case exploration to case supervision and then to special actions. The mode of supervision and handling cases has been transformed from passive acceptance to active supervision and then to active performance of duties，The goal of system governance is to gradually improve the coordination mechanism，promote local legislation，and optimize the top-level design，so as to contribute procuratorate power to accelerate the legislative process of the barrier free environment construction law. In this process，public interest litigation，as an important legal guaranteed measure for the construction of accessible environment，has been widely recognized and widely supported to promote the development of self-development. Finally，in order to promote the high-quality development of barrier free environment construction，the report proposes：actively promote the accessible environment construction into the legal field of public interest litigation；Introduce special laws on accessible environment construction as soon as possible；Actively expand the scope of public interest litigation in the construction of accessible environment；Accelerate the improvement of standards and norms for accessibility；Strengthen the supervision of accessible environment construction；Summarize，promote and publicize mature practices and experiences.