In recent years, Turf revetment engineering more and more appear in the practical project, by the widespread concern in society, but the research is a relatively new field. The traditional slope engineering reinforcement measures, most of the stone retaining wall and mixed spraying structure soil slope, only played a role in the protection of the soil and water loss. Based on soil mechanics, elastic mechanics and the ecological principles and methods, technical route using indoor direct shear test to explore the effects of 5 different soil plant roots on shear strength of soil, and the shear characteristics of root and soil complex. Research and applicaton of practice constantly improve the scientific basis of turf ,making it practical and scientific further fusion,and expand and deepen the theoretical meaning and scope of its engineering applications.