The invention relates to a manufacturing method of an antioxidant iron handicraft. The manufacturing method comprises the following steps that S1, the surface of an iron handicraft is coated with an antioxidant liquid with the use amount of 2-5 g / m <2>, and then is dried at 20-25 DEG C for 18-24 hours; the antioxidant liquid is prepared from the following components of gelatin, carrageenan, chitosan, citric acid, calcium lactate, ethylenediamine tetraacetic acid disodium salt, glutamine transaminase and water; S2, the surface of the iron handicraft smeared in the step 1 is sprayed with a protective coating, wherein the thickness of the protective coating is 20-50 microns; the protective coating is prepared from the following components of AlPO4, nano SiO2, nano Al2O3 and nano SiC; and S3,at the temperature of 120-140 DEG C, the iron handicraft sprayed in the step 2 is cured for 2-3 h, the antioxidant iron handicraft is obtained, and the iron handicraft has high oxidation resistance, high-temperature oxidation resistance and lasting oxidation resistance.