During the Qin and Han Dynasties, the Wujiang river basin of southwest china’s was first incorporated into the central dynasty range. With the central plains dynasty territory extended, a large number of Qin and Han ethnic groups move into the Wujiang basin area in succession through a variety of ways, such as appointed officials, follow army, reclaimed land, and exile. This not only broken the long-term local national close, but also effectively strengthened the central dynasty’ control to the Wujiang river basin in southwest frontier and promoted the effective local ethnic mutual communication and integration.