“The Guanzhongbased policy” was the political basis for the foundation of the Sui and the Tang empire, including mainly bases of military forces, financial strength and culture. The founders of Guanzhong-Gansu group found their feet on the political heritage of the North Wei Dynasty, favorable geographical advantages in Guanzhong and Gansu, solid tradition of etiquette education handed down from the West Zhou Dynasty, and large quantities of military and administrative talents. They took a series of measures to integrate the factors of political basis and established a higheffect and powerful militaryexecutive system, providing complete guarantee for the expansion of the North Wei, the North Zhou, the Sui, and the Tang Dynasty in all directions and laying a solid foundation of the rise of the Sui and the Tang empire.

history of the Sui and the Tang Dynasty; Chen Yinque; the Guanzhongbased policy; Yuwen Tai