The invention relates to an iron mine and oxidized ore beneficiation and flotation agent and a production method thereof and specifically discloses an iron ore and oxidized mine flotation anion collector; the main preparing agents of the anion collector are fatty acid modifier and derivatives thereof; assisting agents of the collector also comprise fatty alcohol, emulsifier and water. The production method of the collector comprises the following steps of compounding the main agents by organic action, then weighting rest components according to certain mass fractions, mixing according to a certain sequence, and uniformly stirring to prepare the micro-emulsion homogeneous phase viscous liquid. The collector has the advantages of strong collecting capacity, strong argillization resistance, low production cost, hard water resistance, stable performances, small agent use level, good selectivity, environment friendliness, safety and adaptivity to low temperature. By changing the variety and use level of the main agents, the series of collectors can be used for the flotation of diversified iron mines, phosphorite mines, fluorites, tungsten mines, rare earth mines, ilmenites and diversified oxidized mines.