This book meticulously elaborates on the theory of public goods supply, delving into government supply, market (private) supply, voluntary supply, and multi-stakeholder cooperative supply mechanisms. It conducts a comparative analysis of public goods supply and supply mechanism reforms across various countries. Not only does the book establish a model illustrating the relationship between public goods supply and economic growth, but it also examines the historical evolution of China's urban public goods supply mechanism reform, specifically within Chinese cities. Through this work, the book distills the unique characteristics of China's urban public goods provision and uncovers the underlying issues and influential factors in public goods supply. Additionally, it explores the evolutionary trajectory of urban public infrastructure and public services, analyzing supply mechanisms and performance. Ultimately, the book delves into the policies governing urban public goods supply, analyzing the decision-making mechanisms and influencing factors of these policies, and offering insightful suggestions for ensuring the effective supply of urban public goods in China.