The present invention relates to a bioplastic composition comprising wheat bran that is a food byproduct and a bioplastic pellet/film using the same. More particularly, the present invention relates to a bioplastic composition comprising wheat bran and a bioplastic film using the same in which the properties of the composition are enhanced to secure the improved properties of the bioplastic film prepared from it, thereby showing a carbon reduction effect and providing a substitute for the conventional petroleum-derived bioplastic products.