From the study of specific properties of sugar palm fiber and lotus stalk fiber found that sugar palm fiber is strong because there is a lot of cellulose. Lotus stalk fiber has the ability to have high moisture. My group therefore bring both types of fibers, this invention is a coaster from sugar palm fiber and lotus stalk fiber diameter 9 cm. Starting from extraction of both types of fibers by boiling water to decompose with 500 cubic centimeters of water and Sodium Hydroxide 1 g and mix the collaboration is the tapioca flour and then bake to dry to a coaster. And test the performance of a coaster from sugar palm fiber and lotus stalk fiber in toughness by tied to the glass that holds the sand up until a coaster is tearing, weigh sand that is the most before tear. In reapply