In view of the problem that an iron tailing is easy to mud, entrainment is severe, and the iron grade recovered by conventional magnetic separation and flotation recovery is not high, the beneficiation process of strong magnetic tail throwing-magnetization roasting-weak magnetic rough separation-fine grinding-weak magnetic selection is adopted, and the effects of the test conditions such as the magnetic field strength of strong magnetic separation, the amount of roasting coal blending,the roasting temperature, the roasting time, the magnetic field strength of the two stages of weak magnetic separation and the fineness of grinding are discussed. The results show that the optimal beneficiation conditions are as follows: the magnetic field strength of strong magnetic separation is 954.93 kA/m; the roasting coal blending amount is 8%, the roasting temperature is 750 ℃,the roasting time is 20 min, the magnetic field strength of the weak magnetic coarse separation is 79.58 kA/m,the grinding fineness of the coarse concentrate is ＜38.5 μm,with a mass fraction of 69.27%, and the magnetic field strength of the weak magnetic separation is 47.75 kA/m. Under above conditions,the entrainment phenomenon is significantly weakened after magnetization roasting, and a concentrate with w(TFe) of 61.55% can be obtained finally.