The aim of this study was to explore the multiple roles of public art in urban renewal and sustainable development goals, combining qualitative and quantitative methods, with an emphasis on community engagement and the application of theoretical frameworks. Through a detailed analysis of public art projects in Teruel, Spain, and Chengdu, China, this study shows how public art plays an important role in enhancing cultural values, promoting social inclusion, and driving economic growth. Qualitative methods such as interviews and content analysis were used to gain in-depth insights into the views and experiences of artists, urban planners, policymakers, and community members. At the same time, quantitative methods such as questionnaires and spatial analysis were used to assess the specific impacts of public art on urban beautification, social inclusion, and economic growth.