本文选取了进出口贸易世界占比、单位土地利用外资、旅游外汇收入占比、星级饭店分布密度、人口净迁移占比五个指标，运用因子分析法测算了2011～2018年粤港澳大湾区总体及各城市的对外开放水平得分，并通过变异系数、聚类分析的方法进行了比较分析。结果发现：粤港澳大湾区对外开放水平总体处于上升的趋势，但各城市对外开放水平分化严重，并且分化的态势越来越明显。基于此，可通过优化进出口结构、提升服务业开放水平、大力引进高层次人才、发挥好中心城市的“领头羊”作用、打破粤港澳要素自由流动壁垒、促进各城市协同发展等举措，为打造对外开放新格局创造条件。
This paper evaluates the level of opening-up of the Guangdong-Hong Kong-Macao Greater Bay Area from 2011 to 2018 by factor analysis method. Several indicators are considered，including share of import and export trade，foreign investment per unit of land，share of foreign exchange income from tourism，distribution density of star-rated hotels，and share of net population migration. Also，coefficient of variation and cluster analysis are given for further discussion. The major findings indicate that，there exists a significant upward trend in opening-up of the Guangdong-Hong Kong-Macao Greater Bay Area overall，while heterogeneity among cities arises. To improve the level of opening-up of the Guangdong-Hong Kong-Macao Greater Bay Area，some measures such as optimizing import and export structure，improving openness of service industry，introducing high-level talents，breaking barriers to the free flow of elements，and promoting coordination development mechanism among cities，should be taken into account.
| Keywords： | Guangdong-Hong Kong-Macao Greater Bay AreaCoordinated Development MechanismOpenning To the Outside World |
