安史之乱前,唐政府为控制东北民族,设置羁縻州,然而安禄山利用唐庭与两蕃的相攻,不断地发展壮大自己,后爆发安史之乱。叛乱爆发期间,两蕃因为受安禄山的影响参与叛乱,但也有一部分没有。渤海从自己利益出发,对安史之乱采取中立态度。 Before the Anhsang chaos, the Tang government to control the northeast ethnic groups, set Jimo state, but An Lushan use Tang court and two Fan phase attack, continue to develop and grow, after the security broke out. During the outbreak of the rebellion, the two tribes took part in the insurgency because of the influence of An Lushan, but some did not. Bohai Sea proceeded from its own interests and took a neutral attitude toward the Anzhua disturbances.