中文摘要：

都市圈地域范围的界定是都市圈研究的基础。科学地确定都市圈的空间范围是保证都市圈的中心城市与周边乡镇的资源的整合，基础设施的共建共享，土地利用一体化，社会经济协调发展的关键。长春都市圈是长吉图开发开放先导区的中心区域，具有雏形期都市圈的基本特点，都市圈的构建对于推进吉林省域及东北中部地区的城市化水平，协调社会矛盾，促进经济整体发展具有重要意义。借鉴国内外相关的都市圈范围界定方法，以日常生活圈为视角，科学合理的确定出长春都市圈的中心城市及周边地区，在此基础上，运用经济距离、引力模型、通勤率等指标，对长春都市圈周边乡镇与中心城市之间的隶属关系进行验证，同时划定出长春都市圈的地域范围和空间结构。希望通过都市圈的构建，淡化行政区划，保护绿色开敞空间与土地资源，建设紧凑型的城市形态与相对分散的功能化区域，积极落实国家新型城镇化政策。

英文摘要：

Metropolitan area is a geographical unit which composes of central city and surrounding areas where has highly social and economic integration with the central city. It is generally defined the city center as the core, with the convenient traffic communication as the basis. The economy and diffusion of information in met- ropolitan area remains highly complex and interconnected. The metropolitan area can integrate more resources, including human resources, material resources and financial resources. So, the metropolitan area is a regional integration entity which is limited by the convenient degree of daily commuting. Defining geographical bound- ary of metropolitan area is the foundation of metropolitan region research. Defining spatial scale of metropoli- tan area reasonably is the key to ensure that the resources, infrastructure and land use in central cities and sur- rounding towns can be integrated in order to achieve the harmonious development between economy and soci- ety. Changchun metropolitan area is the central region of Changchun-Jilin-Tumen Forerunner Area, with basic characteristics of the embryonic form of metropolitan area. Construction of Changchun metropolitan area is of great significance for promoting the urbanization level of the central area of Jilin Province and the northeast ar- ea of China, coordinating social contradiction, and boosting the overall economic development. This article us- es modem defining techniques about city circles, in consideration of daily live circle, to define the city center in Changchun. On this basis, the relationship between surrounding towns and central cities of Changchun metro- politan areas is verified using indexes such as economic distance, gravity model and commuting rate, and at the same time metropolitan area and spatial structure of Changchun metropolitan area are delineated.Changchun metropolitan can be divied into core layer, close circle circle, opportunity circle based on the relation of central city with the surrounding area.Through the construct