Degradable foamed plastic

The invention discloses degradable foamed plastic, comprising the following raw materials in parts by weight: 59-62 parts of poly hydroxybutyrate acid copolyester (PHBV), 42-47 parts of polycaprolactone (PCL), 3-3.6 parts of cottonseed meal of 500-600 meshes, 2.5-2.9 parts of a graphite fiber, 1.8-2.3 parts of a silane coupling agent KH792, 15-18 parts of a foaming agent H, 9-12 parts of urea, 7-10 parts of glycerinum, 3-6 parts of a styrene-butadiene thermoplastic elastomer SBS, 3.9-4.2 parts of a dipentaerythritol ester PCB, 5.1-5.4 parts of an epoxy soybean oil ester, 3-5 parts of nano calcium carbonate, 15-18 parts of calcite in powder, 7-11 parts of hard clay, 5-9 parts of asbestos powder, 0.7-1.1 parts of an antioxidant 2246, and 1.4-1.8 parts of an antioxidant D-50. The degradable foamed plastic has excellent anti-fatigue performance and good impact resistance, and also can be completely degraded to avoid pollution.