The historic Ch'uan Kuo Imperial Seal (Ch'uan Kuo Yü Hsi), created by Ch'in Shih Huang, was considered a device by which to legitimize the emperor's ”Mandate of Heaven.” It was passed down through various regimes and caused many armed conflicts in Chinese history. This essay attempts to prove that many other jade seals of Chinese emperors also had the same function in early times by vindicating the historical records of ”six” Ch'uan Kuo Imperial Seals. However, when China was divided into several kingdoms in the Era of Norh-South Divisions, each regime struggled for its legitimacy. Then the myth of this Ch'uan Kuo Imperial Seal had been reinforced and become popular legends.