[Objective] We aimed to illustrate the roots distribution and tensile properties of three herbages on the hedge of sloping cultivated lands of purple soils in Three Gorges Reservoir region, in order to supply the theory evidence and data supports for hedge consolidation with hedge plants.[Methods] One natural herbage, Eulaliopsis binata, and two artificial herbages, Allium tuberosum and Vicia faba were selected and their root distributions and root tensile properties in different soil depths were compared.[Results] (1) Diameters of the three herbages in 0-40 cm soil depth ranked as:V. faba > A. tuberosum > E. binata. Exponential function can be used to described their relationship between their diameter and the distributed soil depth. (2) There existed obviously significant difference between the roots biomass of A. tuberosum and the root biomass of V. faba and E. binata in 0-40 cm soil depth(p<0.05). Root biomass of A. tuberosum and V. faba were both decreased with the downward distribution in soil, but the root biomass of E. binata firstly increased then decreased with the increase of soil depth. (3) Mean root tensile force of the three hedge herbages ranked as:V. faba(10.53 N) > E. binata(6.03 N) > A. tuberosum(4.51 N). And mean root tensile force was found dependent in power function upon root dimeter(p<0.05). Meanwhile, the rank of mean root tensile strength was E. binata(45.91 MPa) > V. faba(18.02 MPa) > A. tuberosum(12.20 MPa). (4) The mean root cohesion of the three herbages ranked as:E. binata(0.013 1 kPa) > V. faba(0.009 4 kPa) > A. tuberosum(0.005 5 kPa). And exponential relationship between mean root cohesion and soil depths was well fitted(p<0.01).[Conclusion] The natural hedge herbage of E. binata had better performances in soil reinforcement and soil conservation in this region, which could be used to effectively conserve soil and water from the sloping lands. And the herbage reinforcement of the hedge is a new idea for sloping cultivated land harness in the Three Gorges Reservoir region.