PLA is short for Ply Lctic Acid, scientific name is Poly Lacdide. This material is made through burial or compost and able to decompose into water and carbondioxide completely. It does not have any pollute and do not have any bad impact on the environment. PLA is the new and high polymer material which is made by extract of corn (monomer material) processed with chemical synthesis; it contains non-toxic, non-irritating, biodegradable, and absorbability as its characteristics. The plastic that is made by the natural plant and could be decomposed itself, then recycle again to be the water and carbondioxide is the most promising high polymer.