Cities are the centers of economic, political, cultural and social activities in China, and urban construction is an important engine of modernization.

Xinhua News Agency, Madrid, November 17 – The 2022 Global Smart City Conference was held in Barcelona Convention Center, Spain, from 15th to 17th. The theme of this year's conference is "City is the source of human inspiration", focusing on how to improve the quality of life of urban residents and provide innovative intelligent solutions for building a more convenient, safe, efficient and sustainable city.

In 2014, the first global home event of World City Day was launched in Shanghai and returned to Shanghai again this year.

 In 2021, "urban renewal" will be included in the government work report and five-year plan for the first time, and the importance of urban renewal will begin to rise to the national strategic level. In the process of urban development, Shanghai has been based on historical and cultural heritage, adapted to the form of development, optimized spatial allocation, and constantly introduced new policies to ensure the high-quality development of the city. In this issue, the series of reports of "Upward and New Salute to the Centennial Butterfly Change of Shanghai Style", we look back on the development process of Shanghai's urban renewal policy, explore the content related to urban renewal in this year's policy, and explore the development direction of Shanghai's urban renewal in the future.

With the end of an urbanization, China's urbanization rate has already passed the threshold of 60%. From the international experience, the urbanization rate is between 60% and 70%, and the development and construction logic of the city will be clearly divided.