A pot experiment was conducted to study the effects of different W-OH concentration (1%, 3% and 5%) on the maize growth and soil nutrient leaching. The results showed that W-OH could effectively promote maize growth and the effect became gradually obvious since the middle stage of maize growth. Under the current experimental conditions, the light and moderate W-OH concentrations (1% and 3%) were more beneficial to maize growth. After potting 3 months, compared with CK (without W-OH), under the light and moderate W-OH treatments, the maize height increased by 16% and 35%,the net photosynthetic rate increased by 3% and 17%,the stomatal conductance increased by 34% and 79%,and the transpiration rate increased 2 and 3 times, respectively. The precipitation had a different influence on water retention of W-OH. For light and moderate rainfall, 3% treatment had the lowest leakage, showing the most significant water retention effect. For heavy rainfall and rainstorm, the water retention effect of W-OH was positive related to its spraying concentration. The fertilizer retention effect of W-OH was positive related to its spraying concentration at the initial stage of maize growth and tended to be stable with subsequent rainfall leaching. During the observation period, both 3% and 5% treatments effectively reduced the total nutrients leaching loss, especially for nitrate nitrogen. The findings can provide scientific guidance for application of soil stabilizer in slope land.