Abstract: Based on the perspective of development economics, a comprehensive index system of high-quality development is constructed from five dimensions, and the high-quality development index is calculated by weight assignment of entropy method. In this paper, the microcosmic data of China Comprehensive Social Survey (CGSS) in 2015 are matched with the comprehensive index of high-quality development. The influence of environmental governance and high-quality development on residents' happiness is analyzed by Ordered Probit estimation method. The results show that:(1) Environmental governance has regional, urban and rural, and income heterogeneity for residents' happiness. It has a significant effect on the well-being of residents in eastern and urban regions, and high-income groups, but has no significant impact on the central and western regions, rural areas and low-income groups. (2) High-quality development can significantly enhance residents' happiness. (3) Relative income and social justice have significant positive effects on residents' happiness. (4) There is a time lag effect on the impact of environmental governance on high-quality development. Based on this, in the new era, we should firmly promote environmental governance and ecological civilization construction, improve the quality of economic and social development, effectively guarantee and improve people's livelihood, promote high-quality development, and improve residents' happiness. But at the same time, we should also take into account the coordinated development of urban and rural regions, and pay attention to fairness and efficiency.

Key words: environmental governance, high-quality development, residents' happiness, heterogeneity