随着全球化进程的加速和我国对外开放向纵深化发展,地区间经济发展不平衡的程度逐渐加剧。文章用我国1987-2003年各主要省份的Panel数据,对地区开放与地区内收入差距扩大问题进行实证分析,并且利用格兰杰因果检验分析进行了因果检验,认为地区对外开放程度是导致地区内收入差距的重要原因。 With the acceleration of globalization and the deepening of China’s opening up to the outside world, the imbalance in the economic development among regions has gradually intensified. Based on the panel data of major provinces in our country from 1987 to 2003, this paper makes an empirical analysis of the regional opening up and the widening income gap in the region, and uses the Granger causality test to conduct a causal test. An important reason for the income gap.