Abstract: The effects of wild pueraria and bahia grass on soil and water conservation and soil amelioration were studied in red soil of hilly land.The results show that Hengfeng wild pueraria and bahia grass can improve the soil capacity of water，soil porosity，pH value，organic matter，the contents of N，P and K，and decrease the soil bulk density，soil erosion and runoff.It gets good effects in soil and water conservation and soil amelioration，and wild pueraria has better integrative effect than bahia grass.