中文摘要：

对外开放是影响区域格局变化的一个重要因素。文章回顾了在向东开放主导下,中国区域发展格局的演变过程及其现状特征,发现向东开放使得东部地区响应效果好于西部,塑造了我国经济发展与开发强度＂东高西低＂,人口集聚和与之配套的基础设施网络＂东密西疏＂的发展格局;阐述了历史上两轮＂自东向西＂开发与开放并没有改变区域差距日益扩大的事实,而＂一带一路＂有望成为破解这一问题的重要战略,可能对我国沿边区域及其后方基地以及内陆据点式区域的发展格局产生较大影响;提出内陆沿边地区对＂双向开放＂政策响应的建议。主要包括：（1）把创新驱动落到实处,提升品牌效应和创新能力;（2）争取加大国家投入,改善互联互通的基础设施条件;（3）遵循空间结构组织的基本规律,优化国土空间开发格局。

英文摘要：

The regional development pattern of a country, on the one hand, is limited to the effects of the basic conditions of resources and environment, relative land-sea geographical location, spatial structure, regional function division, and other internal factors; on the other hand, in the system of economic globalization, is also related to the effects of external factors, especially the influence on opening strategy and pattern. Because of the different periods, the country＇＇s open strategy and pattern are different, the degree of different regional response and the focus are not the same, and the effect of regional development is also different. Therefore, opening up is an important factor which affects the change of the regional pattern. In terms of the reform and opening, our country can be divided into two big open stages. One is mainly opening to the sea and the east in 1978–2014; the other one is, after 2015, under the strategy of＂the Belt and Road（BR）＂, clearly stated in the party＇s Fifth Session of the Eighteen Central Committee＂sea land interaction, west and east the bidirectional open stage＂. Firstly, this paper reviews the evolution and existing characteristics of China＇s regional development pattern under the opening up dominated by the east region, and finds that the eastern regions response better than the midwest, and shaping such a development pattern, the east is higher than the west, in both economic development and the development intensity, while the east is denser than the west, in both agglomeration population and supporting infrastructure network. Per capita GDP, development intensity（the proportion that industrial and urban construction land area accounted for the total land area）, population density, railway network density and the relative gap between the eastern and western regions, respectively for 43.31%, 90.37%, 93.79%, 81.92%, and 82.27%. Secondly, in the process of the first stage and during the process, the paper elaborates the fact that there is no change i