Keywords:Meat Mince Iron oxide Nanopowder Quality Introduction. It is investigated the influence of the food additive on the nanopowder basis of double oxide of two-and trivalent iron for the quality and the technological properties of beef minced meat.Materials and methods. The beef minced meat in which the nanopowder of double oxide of two-and trivalent iron was added in the amount of 0,05-0,15 %. The water -holding capacity and fatretaining capacity was determined by using a butyrometer and a refractometer; stability of forage emulsions by centrifugation method; the degree of penetration and the marginal shear stress on a tapered plastomer: the stickiness -by the size of the effort of the separating of two surfaces connected by minced meat.Results and discussion. Due to the large specific volume, protein affinity, bacteriostaticity, high chemical potential and thermal stability of the nanopowder of double oxide of two -and trivalent iron has sorption, complexing, emulsifying, water-holding and fat-retaining capacities. This contributes to the formation of the new functional and technological indicators of minced meat systems and improve the consumer characteristics of the finished products obtained from them.The introduction of a food additive which is based on a nanopowder of double oxide of two-and trivalent iron in the beef minced meat in an amount of 0,05-0,15% to the meat mass contributes to the improvement of sensory (by 1,0-1,2 points on a 9point scale) and the functional and technological indicators in comparison with the control: the water-holding capacity increases by 1,1-2,0%; the fat-retaining -by 1,2-2,6 %; the emulsifying capacity -by 1,3-2,0%; stability or stability of minced emulsions -by 1,4-2,1%; it also helps to reduce the level of total microbial contamination from 6,2×10 5 CFU/g in the control to (5,1-5,8)×10 5 CFU/g in samples enriched with Fe 3 O 4 , that is, by 6,5-19,6%. The losses during the heat treatment of the experimental samples of chilled minced meat with the addition of 0,05-0,15% Fe 3 O 4 are reduced by 14,4-18,4%.The rational amount of a food additive on the basis of nanopowder of double oxide of two-and trivalent iron -0,1% to the mass of meat raw materials is shown.Conclusion. The food additive on the basis of nanopowder of double oxide of two-and trivalent iron improves the quality and the technological characteristics of the minced meat systems.