" Long Tian Lou" had been considered as an anti-communist novel whose content mentioned Taiyuan 500 Deed was woven into the primary school textbook, described the history of the Kumintang Troops'' Brave Fight. However, the truth is "the Brave Fight" which was collapsed, not brave. The real historical fact was hidden. The thesis investigated the background of the novel as well as the trauma and the entanglement of each role. To demonstrate the true and false of Perfect 500 Deed, to discover the mysteries of myth and the historical truth, the thesis had Wang Wen-hsing''s painstaking writing"Long Tian Lou" get the opportunity to show in public. The harvest of the thesis is to confirm the relationship between "Long Tian Lou" and the Civil War, to discover the real historical fact hidden by the official history, and to give " Long Tian Lou" appropriate evaluation and status.