S techniques (Remote sense, Geography Information system and Global Positioning system) are employed to investigate and monitor the condition of saline-alkalized land resource in the western of JiLin province, and the up-to-date statistic on the category of saline-alkalized land were gotten. On the basis of analyzing and evaluating the current situation, this article points out the general development trend of saline-alkalized land in the western of JinLin province and its phase characteristic embodi...