西晋末年 ,我国北方长期陷入分裂割据状态 ,黄河流域的社会秩序混乱不堪 ,生产遭到严重破坏 ,广大人民流离失所。割据河西地区的“五凉”政权 ,推行“保境安民”政策 ,创造了安定的社会环境 ,吸引了大量中原流民 ,促使河西的经济、文化有了飞跃性的发展。 In the late years of Western Jin Dynasty, the northern part of our country was deeply divided for a long time. The social order in the Yellow River valley was in turmoil, the production was seriously damaged and the broad masses of people were displaced. According to the “Five-cool” regime in Hexi area, the “policy of protecting the environment and protecting the safety of the people” was adopted. A stable social environment was created, attracting a large number of migrants from the Central Plains and prompting a dramatic economic and cultural development in Hexi.