Originating from the Industrial Revolution in England in the middle of the 18th century, the rapid development of cities in the past 100 years has had a great impact on the balance of the natural environment. Pollution, crowding, and noise are all reducing the happiness index of people living in cities. The wave of modernism is blowing all over the world, and demolition and construction are carried out on a global scale regardless of the local culture, especially in the third world countries. The loss of regional culture has led to the homogenization of cities. And the decrease of Communication between people in cities has made them more indifference to each other to some extent. The urban public space integrates political and economic functions. In order to pursue a certain economic value, the public space in the city has become a place of commercial game to some extent and is constantly being privatized. Urban public space is an important space carrier for the formation of regional context and characteristic culture, and it is also an important place for people to communicate and experience the connotation of urban culture. How to design and update public space under the background of urban renewal has become very significant.