秦汉帝国拥有较成熟的官僚体制,从中央到地方郡县都建立了卓有成效的统治机构,在一定程度上保证了国家的政治稳定。长史是官僚体制中的重要组成部分。秦代已设置长史,两汉的长史参与政治活动比较活跃,对巩固汉帝国的统治贡献良多。 Qin and Han Empire have more mature bureaucratic system, from the central to local counties have established fruitful ruling institutions, to some extent, to ensure the political stability of the country. Long history is an important part of the bureaucracy. The long history of the Qin Dynasty has been set, and the long history of the Han dynasty has become more active in participating in political activities and contributed a lot to the consolidation of the Han Empire.