Abstract: The technology of planting Bemorda and Bahia grasses on highway slopes and the function of slope lawn in slope protection were studied. The results of the study show that the two species of grass have strong drought and poverty hardiness, well developed root systems and fost growing speed. By adopting special planting technology, grass seedlings started to emerge only about 10 days after seeding, and within three months the soil erosion had been reduced by 67.8%, the slope surface cut density had been reduced from 71% to 18%. It is concluded that highway slopelawn could green and beautify the slope as well as reduce the construction cost of highway.