The invention discloses a method for preparing nano-aluminoferrite cement. The method comprises the following steps: 1) weighing a raw material, adding a foaming agent, mixing the raw material with the foaming agent, and performing uniform stirring to obtain a mixture, wherein a mass ratio of the raw material to the foaming agent is 0.214:1, the raw material is one or a mixture of more of calciumcarbonate, clay, aluminum nitrate and red mud, and the foaming agent is one or a mixture of more of urea, alcohol, kerosene, coal and rice husks; 2) sintering the above obtained mixture in a sinteringfurnace at 600-1150 DEG C, wherein the mixture is heated to a rated temperature, and then the rated temperature is kept for 10-20 min; and 3) performing cooling at room temperature after the sintering is finished, and grinding the obtained product by a mortar. The sintering temperature of the preparation method is low, so a lot of energy is saved; the nano-aluminoferrite cement material has the advantages of loose and porous structure, uniform particle size, regular shape, facilitation of the improvement of the activity, and saving of the energy consumption for milling; and the reduction of the production cost is facilitated, and the quality of the material is ensured.