The invention belongs to the field of plastic, and discloses a degradable cultivation bag. The degradable cultivation bag comprises the following raw materials in parts by weight: 60 to 80 parts of modified vegetable starch, 10 to 15 parts of corn cob gelatinization material, 2 to 5 parts of wheat bran powder, 2 to 5 parts of wood powder, 5 to 10 parts of a plasticizer, and 4 to 8 parts of an additive. The degradable cultivation bag gas elasticity, is good in toughness and tenacity, can be rapidly degraded, is suitable for the cultivation processes of crops and flowers and plants, protects theenvironment, reduces human cost, and is high in feasibility.