高句丽有史705年(前37-668),渤海有史229年(698-926)。两个政权相隔30年,时间上具有延续性,地理位置上相近,且政治、经济、军事、文化、外交等方面都或多或少地受中原王朝中央行政制度的影响。因而高句丽、渤海两个政权在中央行政体系中设置方面存在一定的相似性,但因所处的时代不同,又有着明显的差异。 The history of Koguryo 705 years (before 37-668), Bohai history of 229 years (698-926). The two regimes are separated by 30 years, have continuity in time and are geographically similar, and are more or less affected by the Central Government’s administrative system in the political, economic, military, cultural and diplomatic fields. Therefore, there are some similarities between the two regimes of Goguryeo and Bohai Power in the setting of the central administrative system. However, due to the different times, there are obvious differences.