中文摘要：

天然气需求价格弹性对天然气需求的估计及价格的确定有着重要的影响作用。对天然气需求价格弹性估计模型进行总结．给出短期弹性和长期弹性的估计过程；并分别对天然气工业用户和居民用户需求价格弹性的国内外研究进行了详细的综述，认为：（1）一般而言，天然气向价格弹性为负值，且工业用户的自价格弹性大于居民用户的自价格弹性。（2）对于各类用户，天然气长期价格弹性的绝对值都大于短期价格弹性的绝对值。（3）替代能源与天然气的交叉价格弹性为正值，但是都较小。

英文摘要：

Natural gas demand price elasticity has a considerable impact on the determination of natural gas demand and price. This paper summarizes natural gas demand price elasticity estimation models, and presents the estimation process of short-term and longterm elastic coefficient. Moreover, the researches on natural gas demand price elasticity of industrial users and residential users are reviewed in detail respectively, on the basis of which the related conclusions are stated as follows： 1. In general, the own-price elasticity of natural gas is negative, and industrial user＇s own-price elasticity is greater than the resident＇s. 2. For different natural gas users, the absolute value of long-term price elasticity is greater than the absolute value of short-term price elasticity. 3. The cross-price elasticity between alternative energy and natural gas is positive, but the value is very small.