The present invention is plant fiber bobbin for spinning and its making process. The plant fiber bobbin is made with the materials including plant fiber 50-90 weight portions, water soluble synthetic resin 5-30 weight portions, and starch gum 5-25 weight portions. The making process includes the following steps: 1. crushing plant fiber and mixing with water soluble synthetic resin and starch gum; 2. feeding the mixture into forming mold; and 3. molding at 100 deg.c-150 deg.c and 25-65 Kg/sq cm for 30-80 sec. The plant fiber bobbin has high strength, high toughness, low eccentricity and less deformation and may be used widely in textile industry. |