Application: Geomat is a new-typed seed planting material with tridimensional structure. It can reduce erosion to the ground surface before the turf is growing up,and fix the seeds. The compond protection layer formed after the grass grows up can endure wasing by high level and high speed water. It can be a substitute ofthe concrete and stone wallsto be the slope protection material. Used place: It has mainlybeenused in the vegetation belts of road,the slope protection of road and hillside. Charater: It can improve the speed of the project by ten times and reduce the cost of the projrct by ten times.