The production line of environmentally friendly full-degradation filled shock-absorbing packaging materials is a new application of screw press technology. The production line uses plant starch as the main raw material, and is extruded and gelatinized and foamed by a twin-screw extruder, thereby processing into a new type of completely degraded, ultra-light starch-based foamed material (starch-based bubble granules), without Add any blowing agent. Starch-based bubble granules can be used in “sticky music”, “magic corn kernels” and “DIY corn kernels” children’s educational toys. After being slightly wet, they can be bonded to each other, and can be cut and squeezed to achieve unlimited modeling; also It can be used as packing filler, which can quickly and evenly fill the space around the packed items, especially suitable for buffering and shockproof of high-end products such as electronic appliances, precision instruments and meters. Starch-based bubble particles are widely used because of their green, environmentally friendly, degradable, non-toxic and harmless, light weight, anti-static and other characteristics.