汉魏西晋时,中原王朝管理东北地区的体制存在较大变化。两汉时期虽然沿袭了先秦时期的册封制度,但在少数民族管理上郡县体制承担着更大的责任。从东汉末年公孙度专制辽东时起,曹操于襄平(今辽宁辽阳)设置东夷校尉,以此作为管理少数民族事务的主管机构。东夷校尉设置之初,可能由公孙氏兼任,但此时期东夷校尉的作用并没有凸显出来。司马懿平定辽东后,辽东郡县归属幽州,东夷校尉衙署虽设在襄平,但东北地区各少数民族事务主要由州郡负责。西晋时,设平州于襄平,但对东北地区少数民族事务的管理则是以东夷校尉为主,由此形成了一种职责相对分明的二元管理体制。 During the Han, Wei and Jin dynasties, there were great changes in the system of the Central Plains dynasty managing the northeast. Although the Han Dynasty followed the pre-Qin period of the seal system, but in the management of county and county system bear a greater responsibility. From the Eastern Han Dynasty Gongsundu autocratic Liaodong time, Cao Cao in Xiangping (now Liaoyang Liaoyang) set Dongyi Xiaowei, as a management agency in charge of ethnic affairs. Dongyi school Wei set the beginning, may be part-time Gongsun, but the role of Dongyi school Wei during this period did not highlight. Sima Yi Ping Liaodong, Liaodong County belongs to Youzhou, Dongyi school Weixu Department is located in Xiangping, but the Northeast Minority affairs are mainly responsible for the state and county. During the Western Jin Dynasty, Pingzhou was set up in Xiangping, but the management of minority affairs in the Northeast was mainly based on the Wei in Dongyi, which formed a dual management system with relatively clear responsibilities.