明清時期，陝西布政司北界均為長城一線。民國至解放初期，形成今天格局。蜿蜒于長城以北的陝邊延伸區域，在清代本為陝蒙「禁留地」。從禁留地到黑界地、夥盤地，以至陝綏劃界，這中間經歷了一系列的社會變遷。本文從人口、民族、經濟結構入手，探討了邊疆內地化過程中陝北沿邊一系列的社會變動。指出，在北部農牧交錯地帶，社會的轉型是建立在人口、民族更迭、生產方式轉變的基礎之上。為鄂爾多斯南緣自然、人文環境變遷研究提供了社會與經濟的背景分析。

In the Ming and Qing dynasty, the northern border of Shaanxi was the Great Wall and present border was formed from the Republic of China to the early PRC. Beyond the Great Wall, the lands of north Shaanxi area were called as forbidden lands between Shaanxi and Mongol in Qing. In the process of the transformation from the forbidden lands to black earth to the mix planting lands and finally the identifying boundaries Between Shaanxi and Suiyuan. There were a series of social changes in the area. This paper explores lots of social changes in the North Shaanxi border in the context of the frontier into inland through the view of the population and ethnic group and economic structure. It argues that social transformation was based on ethnic population and economic structure and the change of social population model in the agriculture and nomadic pastoral mixing area of the North.