San Francisco Chinatown is located in the corner of the majestic busy financial business district. It is an old district with low shops and no grand and magnificent foreign commercial buildings. However, I prefer to go shopping in Chinatown and enjoy the atmosphere of Oriental culture. Shopping is not only cheaper, but also because its store goods, like Southeast Asia, can be eaten, dressed, used and played in one or two streets to achieve the purpose of tourists. San Francisco Chinatown is the largest Chinatown in the West Bank of the United States and the largest Chinese community outside Asia. It has the longest history and has nearly 100,000 overseas Chinese living there. The ups and downs in Chinatown reflect the history of more than 100 years of Sino-US relations and the traces of the struggle and habitat of Chinese in the United States for more than 100 years.