The invention discloses a cleaning method for improving oxidation resistance of a fishing net. The method is characterized by including the following steps of (1) boiling, wherein the fishing net is placed in clear water for soaking, and then boiling is conducted to obtain a boiled fishing net; (2) soaking cleaning, wherein the boiled fishing net is immersed in a sodium chloride solution and a sodium bicarbonate for soaking separately, and after flushing is conducted, a soaked fishing net is obtained; (3) softening, wherein willow leaves and the like are weighed for crushing, water is added for boiling to a boil, impurities are filtered out, after concentration is conducted, a softening agent is obtained, the soaked fishing net is immersed in a softening agent solution, and is placed in asealed container for heat preservation treatment, and after cleaning is conducted, a softened fishing net is obtained; (4) oxidation resistance treatment, wherein alcohol is taken for heating, tea polyphenol and the like are added, after stirring is conducted, an antioxidant is prepared, the softened fishing net is immersed while heating is conducted, and through multiple times of boiling and airing, an antioxidant fishing net is obtained; (5) curing treatment, wherein paraffin and rosin are added into boiling water, after the paraffin and the rosin are molten, the antioxidant fishing net is immersed for soaking, and ultrasonic vibration treatment is used, so that a cured fishing net is obtained.