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Zeolite is a relative abounded mineral resource. Its distinguished properties on cation exchange capacity (CEC), free structural water storage and surface adsorption have a great potential application on soil ameliorating. The present research applied the zeolite powder in the fine-grained calcareous loess soil, and compared rainfall infiltration and soil water retention of the normal soil with these of treated soil both in laboratory and field. The results show that soil treated with zeolite, compared with the normal soil, could increase infiltration by 7–30% on gentle slope land and more than 50% on steep slope land. In addition, the treated soil could increase soil moisture by 0.4–1.8% in the extreme drought condition, and 5–15% in general situation. Consequently, it can reduce overland flow (surface runoff) and protect soil from erosion. And furthermore, can regulate water supply for crops in severe drought conditions. Thus, zeolite has special properties that can be potentially applied to water efficient use for dryland farming. But some technological aspects need scientific investigation and experiment before it puts into broad implementation.