Abstract: The paper sets forth the basic concept of exergy and the an alyzing method of exergy, and explains the calculating method of exergy efficiency and exergy lossfor heaters of crude oil pump station based on practical example of caleulation.lt puts forward the calculating formula of exergy efficiency and exergy loss formain units of pump station, At the end of article, author has taken the improving measures for enhancing exergy efficiency of pump station and has made the suggestions on totally changing the present way of energy utilization at pump station.