The PLA paper cup is made of PLA coated paper. Polylactic acid (PLA) is a new type of biodegradable and environmentally friendly material made from starch derived from renewable plant resources such as corn. This plant-based material can be completely degraded by microorganisms in nature into carbon dioxide and water needed for plant growth in the compost environment. It has good biodegradability and does not pollute the environment. This is very beneficial to the protection of the environment and is a common environmental protection material.   Compared with the traditional PE coated paper cup, PLA coated paper cup can be recycled after use, and its special and diversified recycling treatment of renewable resources greatly reduces the burden of natural resources and the environment, in line with the green cycle criteria of endless life.   Therefore, PLA paper cups are fully decomposable, compostable and environmentally friendly products. Its production and use is conducive to our better protection of the earth.