Abstract: There are many doubtful points about which Wu Sangui surrendered to Manchu. The author in this paper attempts to expose how the official documents sophisticate the historical truth, moreover, he examines the relationship between Tiandihui (literally "Heaven and Earth Society")'s documents and Wu Sangui, in order to resume the original face of history.
Key words: Wu Sangui; Li Zicheng; Qing History; Tiandihui