For soil and water losing heavy in red soil of hilly land, with Hengfeng wild pueraria and bahiagrass as experimental material, soil and water conservation and soil amelioration were investigated in red soil of hilly land. The results showed Hengfeng wild pueraria and bahiagrass could improve soil capacity, pH value, soil porosity, organic matter, nutrient elements, and decrease soil unit weight, soil erosion, runoff. It got good effects in soil and water conservation and soil amelioration, Hengfeng wild pueraria had better integrative effect than bahiagrass.