Biodegradable disposable lunch boxs mainly extract starch materials from corn. They are made into bio-environmental protection materials through the action of microorganisms such as fermentation in nature. Compared with plastic lunch boxes, they are environmentally friendly and have low carbon emissions during processing. Bio-based materials have become a substitute for plastic lunch boxes in the food delivery industry under the background of limited plastics. This biodegradable disposable lunch box is equipped with an intimate lift handle, easy to open and easy to cover, smooth to the touch, waterproof and oil resistant, and versatile.