1954年英国计量经济学家R·stone在确定效用函数最大化时首先提出了“线性支出系统”(简称LES),用以描述消费者对各种消费品的需求规律。之后,经济学家C·Lluch于1973年又提出把储蓄同样看作一种物品,直接入效用函数,对其进行了发展,形成“扩展的线性支出系统”(简称ELES)。本文运用ELES模型,对湖北省农村居民消费需求进行了分析,结果表明,ELES模型对于利用截面数据资料研究农村居民消费需求问题是一种有效的工具。 In 1954, the British econometrical economist R. Stone first proposed the “Linear Expense System” (LES) to determine the law of consumer demand for various consumer goods when determining the maximum utility function. Later, C Lluch, an economist, put forward the idea of ​​saving as an item in 1973, directly into the utility function and developed it into an “extended linear expenditure system” (ELES for short). This paper uses ELES model to analyze the consumption demand of rural residents in Hubei Province. The results show that the ELES model is an effective tool for studying the consumption demand of rural residents by using cross-sectional data.