A city that can exist in people's memory for a long time must represent some excellent ideas, just as Rome represents conquest, Jerusalem represents faith, and Athens represents the excellent quality of classical art. Nowadays, in our living environment, urban space is divided, huge buildings stand tall, making people's horizons airtight and losing the right to enjoy the sunshine. This is an incomplete way of life. Swiss-born international architect le corbusier put forward the theory of "bright city" and described the advanced state of urban life. Its core is: architecture is no longer an inanimate isolated existence, but an organism combined with community environment, with coordinated form, continuous function, complementary and integrated space and dynamic harmony. The theory of "bright city" is the crystallization of Corbusier's architectural thought all his life. As a modernist architect, his thoughts are based on big industry, and at the same time, he tries to overcome the disadvantages of industrialization itself, emphasizing the mutual tolerance between architecture and nature and the artistic beauty of architecture as the general container of human survival culture. Cobb listed the following points when dealing with architectural design: first, raise the building off the ground with thin columns and let the continuous green space pass under the building. Secondly, because the ground of the city has been filled with buildings, the park will be thrown into the sky and become an effective roof garden. Thirdly, the spatial structure system with large column spacing will inevitably bring about an open plane layout, in which free and flexible partitions can be installed to divide the space. Fourthly, the strip window is not limited by the column spacing, and the lighting area is more effective. Cobb's "two in one" indoor space is full of changes in light perception. Fifth, because the external wall is not load-bearing, the curtain wall that can be opened and closed freely and the partition that can divide the space flexibly meet the needs of function and beauty. These five points constitute the basis of Cobb's new architectural aesthetics. Many of his architectural thoughts have a strong post-modern meaning. His thought is ahead of the times. As an ideal, they are also suitable for today's times. His ideal of "bright city" shines with the brilliance of modernism and post-modernism. Today, the urban planning of many big cities in the world has been influenced by his theory. Planning buildings with the idea of planning cities can be summarized as six points: "small city theory"-architecture is a city. Emphasize the urban architectural thought of combining openness and privacy, and emphasize the architectural function (the perfection of overall function and bedroom function); The mutual landscape between architecture and city is transparent; The purity of architectural language, the beauty of metaphor and symbol; Diversified and multi-level use of landscape space and the extension of spatial functions; Forward-looking and sustainable habitability; Community humanistic spirit. (