Abstract：The slope protection with vegetation is to stabilize slope and protect slope surfaces according to the mechanisms of conservation of both moisture and soil with vegetation. Research shows that the mechanisms of the slope protection with vegetation include that (1) root system of woody plant can anchor rock and soil slope bodies；(2) root system of herbaceous plant has reinforcement action for rock and soil slope bodies；and (3) vegetation can prevent the erosion caused by slope surfaces. The chief characters of the slope protection with vegetation can be described as follows：(1) the effort of the slope protection with vegetation is very weak in initial stage，but will increase as vegetation growing；(2) the action range and effort of root system is limited；and (3) relatively stable slope is demanded for the slope protection with vegetation. Based on these，environmental compatibility and routine of the slope protection with vegetation are discussed. Combining the technologies of traditional slope protection and slope protection with vegetation，the respective merit of each method can be displayed，with this method slope stability can be guaranteed，reinforcement measure is durably effective，and immediate revegetation on the slope surfaces and the ecological environment protection are realized.
