在渤海国历史研究过程中,我们高兴地看到,渤海国的经济、政治、法律、军事、教育、科学、技术、文化、艺术、体育、民族、宗教、交通、贸易、对外关系等,都具有一定的发展水平,不仅在唐、五代时期中国东北边疆社会历史发展中发挥了重要作用,而且在7世纪末至10世纪初东北亚的社会历史发展中,也发挥了重要作用。唐代,是中国封建经济、政治、文化的灿烂时期,是中世纪东方经济、政治、文化中 During the study of the history of the Bohai Sea, we are pleased to see that all of the Bohai State’s economic, political, legal, military, educational, scientific, technical, cultural, artistic, sports, ethnic, religious, transportation, trade, and foreign relations Has a certain level of development. It not only played an important role in the social and historical development of northeast China in the Tang and Five Dynasties, but also played an important role in the social and historical development of Northeast Asia from the late seventh century to the beginning of the 10th century. The Tang Dynasty was a splendid period in China’s feudal economy, politics and culture. It was a medieval era of economy, politics and culture