The recently released "Implementation Opinions of the General Office of the Hangzhou Municipal People's Government on Comprehensively Promoting Urban Renewal" proposes that starting from June 12th, Hangzhou will comprehensively promote urban renewal. Recently, many cities have also issued articles to promote urban renewal and construction, and further enrich the project library. It is worth noting that strict control over major demolition and construction, and encouragement of micro renovation have become important principles for urban renewal at this stage. At the same time, we will vigorously promote the construction of new urban infrastructure based on digitization, networking, and intelligence, making the city more "smart". Industry insiders believe that urban renewal is not only a necessary way to enhance urban competitiveness and achieve high-quality development, but also an important driving force for China's stable investment, expanding domestic demand, and increasing welfare. According to the opinions, Hangzhou plans to basically form a local characteristic urban renewal work system by 2023 and create a batch of replicable and promotable urban renewal pilot projects. By 2025, a series of urban renewal achievements and implementation models will be formed, and a number of landmark urban renewal demonstration projects will be formed. By 2035, focusing on the goals of livability, resilience, and intelligence in cities, the level of urban planning, construction, and governance will be comprehensively improved, forming an example of high-quality and sustainable urban renewal throughout the entire urban cycle. The "Shanghai Urban Renewal Action Plan (2023-2025)" issued by Shanghai clearly focuses on regional renewal, focusing on six major actions: comprehensive regional, living environment, public space, historical landscape, industrial parks, and commercial and commercial project renovation. It promotes urban renewal in a hierarchical, classified, regional, and systematic manner, thereby promoting high-quality urban development. At the same time as some regional files are distributed, some regional project libraries are ready. The "Chongqing Urban Renewal Investment Manual" recommends about 110 urban renewal projects that are currently being promoted and about to be implemented in the city, including projects in the urban renewal project library and projects that have not been put into storage. They are mainly divided into old residential areas, old neighborhoods, old factory areas, historical and cultural areas, old commercial areas, and other types. Qingdao also stated that it continues to accelerate the pace of urban renewal, with a planned 1296 urban renewal construction projects and an annual investment of 199.54 billion yuan within the year. The Qingdao urban renewal project includes the renovation and construction of old cities and villages, municipal facilities, parking facilities, park city construction, and inefficient area renovation. And we will actively introduce high-quality projects and cultivate new driving forces by revitalizing inefficient idle land. The strict control of large-scale demolition and construction, the maximum retention of urban memory, and the preservation of historical context for the city, are becoming important principles and practices for urban renewal in China at this stage. This is the iconic building of Shougang Park, the Three Blast Furnace. In a moment, we will take a sightseeing elevator to the 70 meter high traction and maintenance platform, which can overlook the entire Shougang Park panoramic view. At night, the Three Blast Furnace will be fully lit, with a red appearance that looks like the hot molten steel that used to operate. "Tour guide Xiao Li introduced to the group members of this trip, who couldn't help but take out their phones to take photos as they looked at the tall and magnificent blast furnace. Nowadays, this "three high furnace" built in the 1950s can no longer see the splashing of steel flowers in the past, but instead turn around and take on the magnificent design