创新作为城市和区域发展的主要动力，区域空间重构其本质是创新要素的流动、组织和交互耦合关系。以长三角城市群42城市为研究样本，从2000-2015年分3个阶段选取了通过世界知识产权组织（WIPO）的PCT体系申请和公布的专利合作数为创新合作的替代参数，采用社会网络分析方法，从网络密度、中心性和凝聚子群等维度，结合空间分析，观察长三角创新协作关系的社会网络特征、空间组织特征和演化规律。结果表明：（1）2000-2005年，以上海为主要节点的城市创新合作网络开始萌芽；（2）2005-2010年，长三角创新城市群落迅速发展，以上海为核心的“核心+多节点”的协作网络和空间组织特征初步显现；（3）2010-2015年，长三角“核心和多节点”的网络组织特征更加明显，同时出现沿交通轴形成创新走廊等新现象。%With innovation as the main driving force of urban development, and innovation clusters and activities has been the focus of urban geography research. In this study, base on the data of the Patent Cooperation between 42 cities in the Yangtze River Delta from 2000 to 2015 , to observe innovative cluster of the Yangtze River Delta by the density, centrality ,network association and spatial structure of innovative urban cluster. The results show that: (1) 2000-2005, the Yangtze River Delta innovative urban community has been bringed up in embryonic stage, with Shanghai as the center of the cooperation network; (2) 2005-2010, the Yangtze River Delta innovative cities community formed initialy, and Shanghai as the innovation center of the whole network, the feature of "core + multi-node" appeared in the space organization initialy; (3) 2010-2015, with the rapid development of innovative urban community, the network features of "core + multi-node" become more obvious, and also appear a new phenomenon that innovative transportation corridor along the axis.
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