In order to evaluate the effect of incorporation of forage with forest and shrubby on erosion control, runoff plots were constructed in 2001 in Jinsha River Experimentation Demonstration Plots. The results of three years showed that forages and forest had very significant effects on controlling runoff and soil loss. The vegetation could reduce runoff speed and increase rainfall penetration remarkably, thus could reduce runoff and erosion. After grain for green, soil nutrient increased, soil bulk density decreased, soil physical and chemical characteristics improved, and plot production promoted greatly due to the interception and capture of the lost soil nutrient by forage.