Horizon,which is written by James Hilton has been very hot in the West.He presented a Chinese utopia to the western world.At first,the Chinese mystification in Lost Horizon is attempted to analyze by orientalism;it is pointed out that some of understandings of Chinese image are closely linked to a specific background.Then it is illustrated that the constitution of Chinese image is an alienation him,which is one of the representation of the western world's mystification,authorization and appetency.