借鉴国际上常用的方法对我国东中西三大地区对外开放度,以及外商直接投资(FDI)和净出口对各地区经济增长的贡献度进行测算后,本文认为三大地区间对外开放度的差异是经济发展水平上存在差距的重要原因。在进一步分析东部地区FDI与进出口贸易相关关系的基础上,对东中西部间对外开放度差异的扩大,以及东部地区各省对外开放度的差异给出了解释。 After referring to the commonly used methods in the world to estimate the degree of opening to the outside world of the three major regions in the eastern, central and western regions of our country and the contribution of foreign direct investment (FDI) and net exports to the economic growth in various regions, this paper considers that the difference in the degree of opening to the outside world among the three major regions Economic development level of the gap between the important reasons. On the basis of further analysis of the relationship between FDI and import and export trade in the eastern region, this paper gives an explanation of the difference in the degree of opening up between the eastern, central and western regions as well as the difference in the degree of opening to the outside world among the provinces in the eastern region.