The work aims to research the process of preparing blended foam materials from diaper recycling materials mixed with corn starch, cassava starch, PE, etc., and discuss its application in packaging filling. Diapers were subject to high-temperature disinfection, separation, crushing, ethylene oxide disinfection, bleaching, deodorization and other processes to separate PE bottom films, pulp and other recycling materials. These materials were mixed with corn starch, cassava starch, PE, additives, etc., and then blended foam materials were prepared at 160-170 ℃. The density, resilience, compression permanent deformation, water solubility, shock absorption and vibration reduction performance, degradability, and heavy metal content of the material were tested, and the effect of the addition amount of diaper recycling materials on formulas 1-4 was studied. The results showed that with the increase of diaper recycling PE materials, the apparent density and bulk density increased by about 0.7 kg/m3, and the porosity was about 61.81%. Resilience and compression permanent deformation were improved, and when the compression deformation was less than 25%, the recovery rate was greater than 90%. The addition of diaper recycling materials had little effect on the shock absorption and vibration reduction performance. The water solubility of the material gradually weakened with the addition of waterproofing agents, and the volume reduced by 80% to 90% after 3 months of degradation, with a mass loss rate of about 15.62%. With the increase of diaper recycling materials, the heavy metal content increased, but it was far less than the standard value. In conclusion, diaper blended foaming materials can be used as packaging filling materials for express delivery, with high porosity and certain shock absorption and vibration reduction effects. They have good water solubility and degradability and can be landfilled without heavy metal pollution. The designed high-efficiency automatic filling and packaging machine improves the utilization efficiency of diaper recycling blended foam materials, and its filling and packaging speed is 10 to 15 times that of manual operation.