According to the theory of spatial gravity center, moving route of three economic zone in west China spatial gravity center from 2001 to 2010 is analyzed by ArcGIS. The result shows that' the industrial structure of each city of three economic zone has great changes, at the same time, by the influence of economic strength and the population scale, the central city has great economic power and radiation scope, each barycenter of index is based in central city, the economic gap between cities within the region has the trend to increase. On the basis of the above, the specific suggestions about economic growth of the economic zone of west are put forward.%以空间重心分析为理论框架,运用ArcGIS平台对西部三大经济区2001-2010年的经济空间重心移动轨迹进行了分析.结果表明,三大经济区内各城市产业结构均发生了较大变化；同时,受经济实力、人口规模等影响,中心城市经济实力强,辐射范围广,三大经济区各指标重心均偏向于中心城市,区域内城市间经济差距有增大趋势.在此基础上,提出了西部经济区经济发展的建议.
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