Four typical sections of red sandstone slope along Shaoguan-Ganzhou expressway were selected tostudy the ecological protective effects of the grass-shrub vegetation technology on protection of red sandstoneslope.Plots were deployed to investigate the species compositions with different grass-shrub ratio.In addition,the number,height and frequency of shrub were also surveyed and recorded.The indexes regarding relative abundance,relative height,relative frequency,important value of plots,the shrubs were determined todescribe the compositional features and quantitative and ecological characteristics of the plant communities inthe test area.The results indicated that grass-shrub vegetation technology was more readily adaptable for redsandstone with poor surface soil,which is prone to weathering and erosion.Legume species grow well in thecircumstance with pool soil by nitrogen fixation and therefore played an important role in ecological restoration of vegetation on the study area.A certain ratio of local native shrubs,legume and grass could build astable plant community on red sandstone slope,showing good protective effects.