The invention discloses a production method of an irony food nutritive fortifier sodium iron ethylenediamine tetraacetate. The production method comprises the steps of raw material synthesis and solution, concentration, crystallization, centrifugation, drying, crushing and screening as well as packaging and warehousing. The production method is characterized in that ferric oxide, ethylenediamine tetraacetic acid and a sodium salt are taken as the raw materials; the step of raw material synthesis and solution comprises proportioning the ferric oxide, the ethylenediamine tetraacetic acid and the sodium salt in a mass ratio of 1:(3.5-4.5):(0.8-1), adding water to a dissolving pot and then continuing to add the ferric oxide and the ethylenediamine tetraacetic acid, heating to 100 DEG C, adding the sodium salt, and adjusting the pH value of the solution to the range from 3.0 to 6.0 after complete dissolution of the solution. The method has the advantages that no by-product is generated in the production process and the safety is high, the mother liquor can be recycled indiscriminately, and therefore, the utilization rate of the mother liquor is high, the yield of the product is more than 85%, and the environmental protection requirements are low.