辽东公孙氏是在汉末兴起的地方割据政权,政权存在50余年。公孙氏先后制定远离中原,立足东北,依附曹魏,以求自安的对外政策,使得政权稳定发展。到公孙渊统治时期,采取周旋于魏吴之间的对外政策,是导致其政权灭亡的重要因素。本文以对外政策为视角,旨在说明公孙氏政权的兴亡与其对外政策息息相关。 Gongsun of Liaodong was the place where the rise of Han Dynasty was divided and the regime existed for more than 50 years. Gongsun has successively formulated its foreign policy of settling away from the Central Plains and based on the northeast and attaching itself to Cao Wei for stability so that the regime will develop steadily. By the time of Gongsun Yuan’s rule, the foreign policy that took place between Wei and Wu was an important factor that led to the demise of its regime. From the perspective of foreign policy, this article aims to show that the rise and fall of Gongsun’s government is closely related to its foreign policy.