Integrating the urban flow model,fund flow model,population flow model,traffic accessi-bility model,and information accessibility model,this paper constructs a comprehensive evaluation model and analyzes the data of the year-end employee number in various units,industry practitioners number,density of urban population,urban gross domestic product (GDP)in 9 cities of Shandong peninsula from 2004 to 2013 with the methods of GIS spatial analysis and SPSS.The results are com-pared with those of Beijing-Tianjin-Hebei urban agglomeration.It is found that,first,the outward function of Jinan is slightly higher than that of Qingdao and Jinan relies more on the third industry;second,the radiation function of Jinan and Qingdao does not match their status as the core cities,and their outward function has not been enhanced over the years;third,the space and industrial division between the cities are fixed,and the economic connections are loose.The results prove that Shandong peninsula urban agglomeration is still at its elementary stage.It is proposed in this paper that in order to optimize the economic connections between the cities in Shandong peninsula urban agglomeration, the government should take a number of measures,including breaking the traditional fetter of indus-trial division and building a flexible pattern of urban agglomeration;giving full play to the functions of the core cities by strengthening the cooperation between governments;building a space network sys-tem and eliminating the obstacle of elements redistribution;and promoting urbanization step by step and the urban infrastructure construction in small and medium towns.%采集2004-2013年山东半岛9个城市19个行业年末单位从业人员数、各行业从业人员数及市区人口密度、市区国内生产总值等数据，利用 GIS 空间分析方法和 SPSS 工具软件，结合城市流模型、资金流模型、人口流模型、交通可达性模型、信息通达性模型等构建经济联系综合评价模型，并与京津冀城市群的相关数据进行对比分析，发现济南比青岛外向功能略高，且偏重第三产业，但济南和青岛两个核心城市的辐射作用都不强，多年来外向功能提高不大；各城市之间空间和产业分工格局固定，城市间经济联系不密切，城市群尚处于初级发展阶段。优化山东半岛城市群经济联系应突破传统产业分工束缚，打造柔性城市群格局；通过加强政府之间的合作，明确核心城市功能；构建空间网络体系，消除要素流动障碍；稳步推进城镇化，完善中小城镇基础设施等。
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