During the late Ming Dynasty, Li Zi-Cheng, born in Mizhi County, Shaanxi province, was a dismissed postman Li who joined a rebel army. Later he became a rebel leader and led starving and unemployed soldiers to overthrow the Ming Dynasty in 1644. He proclaimed himself the Emperor of the short-lived Da-Shun Dynasty lasting 42 days only. In April 1644, Li’s rebels sacked the Ming capital of Beijing and forced Emperor Chongzhen to commit suicide. Shanhaiguan was opened because of him and hence created a chance for Qing Dynasty to reign over the mainland China. The purpose of this study is to analyze the textbooks on both sides of the Taiwan Strait based on the writing of the same historical figure. In history textbooks between mainland China and Taiwan, is he depicted as a "Kou" (someone like a bandit who wants to overthrow the regime to usurp the throne) or an Emperor? The purpose of this study adopted NVivo 12 Plus to explore the characterizations of this person from different versions of these textbooks. The results of this study showed that Taiwanese textbooks regard him as a bandit, while mainland China’s textbooks are more complimentary than derogatory.