This article, focusing on the constructions of Stupa during the Renshou period (601-604) and the influence of Buddhism, will probe how the Buddhist theocracy in Sui dynasty affects the medieval Chinese empire administration. During the Renshou period, Emperor Wen of Sui utilized the building of Stupa to construct political ideology, absorb various social forces and increase the royalty of the ruled people of the empire. Through analyzing both the historical records and stone inscriptions, we could discover that Emperor Wen intended to build an ideal Buddhist empire. With bureaucratic dictatorship, such actirities as constructions of Stupa were carried out that people of the empire could take vows to abandon evil and act well, while paying their royalty to the government at the same time. This can be regarded as the true combination of Sui kingship and Buddhism. Besides, Buddhism was beneficial and helpful for the emperor to cultivate people and increase their royalty to the empire. Thus, there was duality in Emperor Wen’s kingship. He was not only the emperor who receive the will of heaven 天命, but the sacred Buddhist emperor as the builder of the local Buddhist community all over the empire. The Sui Emperor’s dual role was charaterized by the combination between Royalty and Buddhist theocracy.
