中文摘要：

在归纳概括经济极化驱动力机制概念及其内部逻辑关系的基础上，建立长三角地区经济极化驱动力的综合评价指标体系，选取1996，2001，2006和2012年4个典型年份，运用熵值法对其整体和25个中心城市的经济极化驱动力和类型进行定量比较。结果表明：①长三角地区经济极化的驱动力与极化水平之间存在较为明显的相互促进关系，且随着时间的推移经济极化形成与发展的动力逐步由工业化为主向全球化为主转变，进而转向城镇化和分权化多元并进的局面；②近10多年来，上海市的经济极化属于分权化带动型，但其经济极化的总驱动力在逐渐减弱，而江苏省各地区经济极化驱动力的类型多样，自北向南的层次感十分突出，浙江省各地区的经济极化类型变化较大，主要是从以工业化带动型为主逐渐向分权化和基础设施建设带动型转变。

英文摘要：

Based on the analysis of related concepts of the driving-force system of economic polarization and the internal logic relations ,this paper builds up a comprehensive evaluation index system of the driving-force system of economic polarization.Then the paper selects four typical years （1996, 2001, 2006 and 2012） and makes a quan-titative analysis on the driving-force system of economic polarization in the Yangtze River Delta and its 25 cities by using entropy method .The results show that：①There is an apparent relationship of mutual promotion between the driving-force and the polarization level .And with time goes by , the impetus of formation and development of eco-nomic polarization is changing , which is gradually shifting from singleness to multi-element.That is to say the major impetus is transforming from industrialization guidance to globalization guidance .Finally it forms multiple elements situation, whose driving-force comes from urbanization guidance and decentralization guidance .②Firstly, in recent 10 years the economic polarization of Shanghai has been a type of decentralization guidance .But total driving-force of its economic polarization shows a trend of decline .Secondly , Jiangsu Province , which has a numerous types of driving-force in many areas , shows an obvious sense of hierarchy in driving-force types from north to south .Third-ly, there is a big change in driving-force types of Zhejiang Province , which is mainly changing from industrialization guidance to the decentralization guidance and infrastructure construction guidance .