Abstract: With iron tailings and low grade bauxite from Shouyun Mining Company as raw materials，the belite-sulphoaluminate cement clinker was prepared，which proposes a new way for exploring the high added value of iron tailings. The results showed that with the ratio of iron tailings，bauxite，calcined limestone，Al₂O₃，CaSO₄·2H₂O of 10∶17∶48∶15∶10 in the raw meal，and at the calcination temperature of 1 350 ℃ for 20 min，belite-sulphoaluminate cement clinker with major components of C₄A₃S，C₂S，C₄AF and f-CaO content of less than 1.5% was prepared. Then，natural gypsum and limestone were added into the clinker with the quality ratio of 8% to prepare the cement raw meal. With the cement-sand ratio of 1∶3，and water-cement ratio of 0.6，the cement-mortar product reached the compressive strength of 38.1 MPa，at 3 d，and 52.5 MPa at 28 d.

Key words: Belite-sulphoaluminate cement of iron tailings, Mineral components of cement clinker, Cement-mortar compressive strength