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Tuyuhun is one of the local ethnic minority regimes established from the source of the Yellow River in the northwest to the Tao River basin in my country from the Southern and Northern Dynasties to the early Sui and Tang Dynasties. Because it was exposed to different geopolitical relationships at different historical stages, its traffic pattern has always undergone different changes. This is not only the result of the constraints of its living environment, but also the result of the changing relationship with its surroundings during its development process. During the special historical period of the Sixteen Kingdoms and the Northern and Southern Dynasties, although Tuyuhun's internal traffic was cramped and concentrated, its external traffic was very long and extensive. This reflected the difficulty of the Tuyuhun regime in establishing a foothold in the Hetao area. In particular, the pre-Qin, Western Qin, Southern Liang, Northern Wei and other regimes strongly squeezed the Tuyuhun's activity range from north to south. Although it restricted the tribe's development in the Hetao River Basin, it also promoted its development on the "Tuyuhun Road". In short, the changes and characteristics of the Tuyuhun traffic pattern can be reflected that during most of the period of its founding, the Tuyuhun regime was in a state of rushing westward and southward on the Tuyuhun Road, constantly seeking a foothold.