Plant fiber product and preparation method thereof

The invention discloses a plant fiber product prepared from 43.7-52.6 percent of plant fiber powder, 17.3-26.5 percent of starch and 28.2-35.8 percent of urea-formaldehyde modified resin. A preparation method of the plant fiber product comprises the following steps: 1. positioning a plant into a crusher and crushing the plant into 25-80-mesh powder; 2. evenly mixing the proportional raw materials in a stirrer; 3. carrying out preheating, and preheating a forming mould to a temperature of 110-120 DEG C; 4. sending the mixed material into a forming-mould-dedicated mould according to an amount required for product formation, wherein mould temperature is controlled to be 110-120 DEG C; and adopting a 7.9-20 kg/cm2 pressure to pressurize the mould and carry out demoulding for formation after 40s. The plant fiber product not only has wide raw material source, saves resources, is environment-friendly and has simple production method and low cost, but also has good strength, can be naturally degraded after being disc