Abstract: Based on the Chaoying small watershed, the efficiency of runoff and sediment reduction on different mode of hedgerow was studied using the standard runoff plots method. The runoff plots include:ryegrass, the combination of ryegrass and trifolium repens, trifolium repens, the combination of orchardgrass and filbert, the combination of orchardgrass and fagopyrum dibotrys and akebiaquinata, and five runoff plots were contrasted with corn field of runoff plots in order to revel the characteristics of runoff and sediment reduction under the hedgerow in stony desertification region. The results were showed:(1) Every hedgerow had a positive efficient on runoff and sediment reduction in karst plateau area, but the combination of orchardgrass and fagopyrum dibotrys and akebiaquinata had the best effect on runoff and sediment reduction; (2) The order of runoff and sediment reduction amount of different plots from big to small was trifolium repens, ryegrass, the combination of orchardgrass and filbert, the combination of ryegrass and trifolium repens, the combination of orchardgrass andfagopyrum dibotrys and akebiaquinata; (3) Compared to the control, the combined mode hedgerow (the combination of orchardgrass and fagopyrum dibotrys and akebiaquinata, the combination of orchardgrass and filbert, the combination of ryegrass and trifolium repens) were significantly better than single mode hedgerow (ryegrass, trifolium repens) on benefiting in runoff and sediment reduction.