The Immediate Action on Request reform is an important initiative by Beijing to handle the problems of governance in mega-cities. With 12345 Citizen Service Hotline as the core，the reform focuses on the urgent，difficult，and worrying matters of the public，and enhances the capability and effectiveness of governments at all levels by empowering grassroots governments，optimizing the governance process，and strengthening data analysis. Governments at all levels have always implemented the people-centered development ideology and explored many effective governance mechanisms based on rich local experiences in the process of implementing the reform. The seven cases selected in this chapter systematically present two types of institutional innovations accumulated by Beijing governments at all levels in the reform process：first，strengthening the interaction between the government and society by opening up channels for reflecting public opinion and strengthening multiparty coordination mechanisms；second，optimizing the government’s internal governance mechanism and enhancing its governance capacity by enhancing party leadership，building special teams，reconstructing governing processes，and strengthening supervision. These institutional innovations have effectively enhanced the ability of Beijing governments at all levels to perceive，understand，and respond to public opinion，and provided a solid institutional guarantee for the comprehensive deepening of the reform of “Immediate Action on Request”.