Abstract: The iron ore sample was fused with Li2B4O7-Li2CO3 at 1 120 ℃ to form a glassy circular slice which was used for XRFS analysis,and the structural effect was thus be eliminated and matrix effect reduced.Conditions of fusion and effects of mass change during fusion on analytical results were studied.Experiential factors were applied to the correction of the matrix absorption excitation effect.A XRFS method for determination of total Fe,P,SiO2,Al2O3,CaO,V2O5,TiO2 and MgO was proposed.