本文从八个方面定性分析了辽宁省县域经济差异的成因,利用区域分离系数定量分析这八方面的成因对辽宁省县域经济差异的影响程度,并对其进行依次排序为:产业结构转换能力、固定资产投资水平、市场发育程度、自然环境、中心城市规模、区位条件、区域发展策略和经济全球化,其中前三项对辽宁省县域经济发展的差异影响最大。 This article qualitatively analyzes the causes of the economic difference of county in Liaoning Province from eight aspects, and makes use of the regional separation coefficient to quantitatively analyze the influence of the causes of these eight aspects on the economic difference of Liaoning Province. And it sorts the order according to the industrial structure conversion ability, The level of investment in fixed assets, the degree of market development, the natural environment, the size of the central city, the location conditions, the strategy of regional development and economic globalization, of which the first three items have the greatest impact on the economic development in Liaoning Province.