The biodegradable straws can be completely degraded by natural microorganisms under special conditions after use, and finally generate carbon dioxide and water without polluting the environment. We can withstand temperatures from -20 degrees to 80 degrees, which is close to traditional plastic habits and has the same characteristics as traditional plastics. The physical straw has the same physical properties and high stability. The biologically explainable straws are individually packaged, more hygienic, exquisite workmanship, and smooth surface without burrs.