Abstract: The traditional concrete and stone structures, such as shotcrete and laying stones, are used as the major protection means for escarpment and slope over a long time. However, these traditional measures taking conCrete and stone as the major material are not always economical and effective, .especially difficult to adapt the increasing needs to environmental protection and afforestation. Based upon the introduction of the SNS (safety netting system) flexible protecting system mainly composed of wire rope nets and steel wire mesh, this paper makes a comparison between SNS and the traditional measures, demonstrates its comprehensive advantage intechnology, economics and environmental protection in the respects of its standardized design, rapid and simple construction, in favor of environmental protection, adaptation to the varied topography and so on.