For thousands of years, Lanzhou city has long history and bright culture, and has numerous historic buildings and cultural relics. But with the rapid development of the city, many cultural heritages had been destroyed. The cities appearance are becoming more and more similar, urban culture roots has not clear, the city began to become unfamiliar. The reason is the local residents have a lack of cultural identity to living environment. City square, as a major public urban space. By a sense of spiritual civilization, it should be a window of the city and essential building space to daily life of local residents; it also bears an important responsibility which is heritage city in cultural context. Based on the Yellow River in Lanzhou City, and the study of the new square design concept, analyzed and summarized, presented the concept of square design to create a historical and cultural context of urban culture, the importance of heritage and modern artistic expression should be united with urban history and culture diversity, to make people re-establish the cultural identity for the city to gain ownership in their spirit.