The science project bioplastics from cellulose is in Para rubber leaves. This experiment were to study the quantity of cellulose suitable in the production of bioplastics from Para rubber leaves and test the properties of bioplastics from Para rubber leaves. The experiment divide into 4 parts use of Para rubber leaves quantity 25g, 50g, 75g and 100g. The result showed that Para rubber leaves the amount 75g solution has toughness and it is optimal amount of preparation as bioplastics. but it can not efficiency test because plastic is limpness and it coagulated poorly. Therefore; we should find methods to that can the formability is really plastic.