Writing the secret history of the Qing Palace with the Red Mansion technique is not only faithful to the historical framework of the Qianlong period, but also "restores" the characters, poems, and scenes in "Dream of Red Mansions" to the real historical context one by one, revealing the inevitable fragmentation of the "wood and stone alliance" under the responsibility of the emperor's family and country, and ultimately points to the eternal tragedy of "even if the case is raised with eyebrows, the bottom line is difficult to reconcile." It also uses the history of the Qing Palace to restore the Red Mansions scene and interpret the secret behind the Dream of Red Mansions.