To investigate the effects of slope shapes and polyacrylamide (PAM) applications on runoff, soil erosion and nutrient loss, this study conducted the field artificial rainfall experiments with two PAM application rates and nine slope shapes. The results showed that the average amount of soil, ammonia nitrogen and phosphate losses from convex slopes increased by 25.12%,24.01% and 26.96%compared to the uniform slopes, respectively, while those of concave slopes decreased by 13.53%, 10.85% and 19.95%, respectively. Soil and nutrient losses were also increased with the increase of convexity in convex slopes. For runoff, there was little difference between concave and convex slopes, but the runoff amounts of both convex and concave slopes were greater than those of uniform slopes. After PAM application, the soil loss decreased by more than 90% and the nutrient loss decreased by 28.19%~68.13%. Application of PAM had the best effect on reducing soil erosion and nutrient loss in convex slopes.