Household plastic bag capable of being naturally degraded

The invention discloses a household plastic bag capable of being naturally degraded, and belongs to the technical field of plastic bag processing, and a preparation method comprises the following steps: (1) preparing a treating agent; (2) soaking; (3) mixing the materials; and (4) preparing a finished product. According to the household naturally-degradable plastic bag, a special treating agent is prepared and used for soaking plant fibers, in the soaking process, the toughness of the plant fibers can be enhanced, the treating agent can be attached to the inner surfaces of the plant fibers, therefore the bio-degradation rate is increased, meanwhile, the plastic bag can have lasting mildew-proof and antibacterial properties, and thus the plastic bag is more suitable for daily household. In addition, special soaking treatment, shaking treatment, low-temperature placement and hot bath are adopted for mutual matching use, the action effect of the treatment agent is enhanced, and therefore the mechanical property,