中文摘要：

多中心城市区域是当代区域发展的主要模式，也是区域研究的重要方面。而多中心区域空间结构的研判也是制定适宜区域政策的前提，是推动多中心城市区域健康可持续发展的重要基础。利用山东半岛蓝色经济区各城市2013年、2008年、2003年的统计年鉴数据，以县（区）行政单元为基本空间单元，辅以城市行政空间单元，采用主成分分析法和聚类分析法，测算蓝色经济区最近10年的空间组织格局演变过程。研究发现，山东半岛蓝色经济区经历了从“核心-边缘”特征明显的单中心模式到“多中心”结构特征的空间结构演变过程，其空间发展的“去单核化”和“多中心性”特征较明显。

英文摘要：

Polycentric urban region is the main model of the present regional development, and it is also an important aspect of the regional study. The judgment of regional spatial structure of multiple centers is the premise of making appropriate regional policy, and it is also an important basis for promoting the healthy and sustainable development of polycentric urban regions. By using the statistical yearbook data （the year of 2013, 2008 and 2003） of Shandong Peninsula Blue Economic Zone （SPBEZ） of each city, taking the county （district） administrative unit as the basic spatial unit and supplemented by urban administrative space unit, and adopting principal component analysis and cluster analysis to calculate the spatial structure evolution process of SPBEZ in recent 10 years. Research suggests that SPBEZ has experienced obvious spatial structure change from the core-periphery feature of single-center mode to significant development course of polycentric, which features from single core to multiple centers.