The land for long-distance ntural gas pipeline is a unique land type in the industry. It is easy to trigger disputes between pipeline enterprises and their counterparts.Academic circles often classify as easement based on public interests.Few people analyze the inherent nature of the causes from the perspective of economics.After the study,it is believed that this phenomenon originates from the theory of government regulation. There are four reasons,namely theory of government regulation,the scarcity of land resources,regional economic development plan and market failure.