The paper is pided into five parts. The first part is introduction. The second part is an overview of the mainstream theories of western dreams. Third part is Chinese and Western culture differences reflected in dream theories, fourth is a comparative study on Chinese and Western cultural mainstream dream theories. Fifth is conclusion. This paper is based on two representative perspectives. For example, Western dream culture is based on the analyis on representative work of Sigmund Freud , While the Chinese dream culture is based on ancient Chinese ZhouGong as the starting point. But there are essential differences between The Interpretation of Dreams and ZhouGong Dream Dictionary. The former is based on feudal superstition, and the latter has a scientific foundation. This paper, starting from the differences between the two, such as different theoretical origin, to explore oneiromancy method differences . Of all kinds of strange human dreams have a clear summary. The dream analysis as the starting point and compare the cultural differences.