The author tries to analyze the evolution of Chinese civilization in early ancient times from the internal and external perspectives. In the first essay, he outlines two research projects on the sacrificial sites in ancient China and the traces of foreign cultures discovered during archaeological activities, respectively. The first part emphasizes that China already had a unique civilization back in early ancient times. While the second part discusses the communication and interaction between the Han and non-Han people, the Central Plains and other regions, and the East and West. The author traces the influence of foreign cultures on ancient China by examining the shape, structure, and artistic techniques of cultural relics.