Abstract: Soil stabilizer can solidify all kinds of soils and has manyadvantages such as using local materials, reducing sandstone dosage and saving engineering cost, so it has a wide applied prospectin water-harvesting system, especially in catchment area. Based on theclassification of stabilized-soil catchment area, four different construction techniques, namely, stiff-monolithic-smoothing with soil stabilizer slurry technique, stiff-monolithic-natural smoothing technique, stiff-brick technique and plastic-monolithic-natural smoothingtechnique, were analyzed. The rainwater harvesting efficiencies of catchment area with different construction techniques were above 90% and the coefficients of roughnesswere 0.011～0.014. Compared with concrete catchment area, the cost of stabilized-soil catchment area could reduce at least 40%. Results show that stiff-brick technique has an important position and value in future development and application, and plastic technique should be utilized in the only-one cachment area and the technique of smoothing with soil stabilizer slurry is very usefulto reduce the coefficient of roughness and the shrinkage on the surface.