Geotextile is permeable fabric which has the ability to separate, filter, reinforce, drain, or protect. Ordinarily geotextile can be diversified into nonwoven and woven geotextile. The raw material is mostly synthetic chemical fiber such as polyester (PET), polypropylene(PP), polyethylene(PE) and so forth. The synthetic fiber composed into nonwoven needle punching geotextile can be devided into short filament type and filament type. They can be chosen based on detailed project design requirement.