Abstract: In this report Abstract an overall and systematic analysis is made on the profit out of a middle-scale irrigation project which has been completed.Data are collected for the actural investment and profit of the project for drainge, lrrigation,and harnessing saline-alkali soil during the past 33 years,and steady and dynamic analytical methods are used.These data shows high profit,low costs and great potential for harnessing saline-alkali soil in Xinding Basin and the adopted method may have some value of reference in the economic analysis on similar projects.

Key words: Harnessing saline-alkali soil, Economic profits