In order to respond to the national "double carbon" goal and solve the problem that the acid oxidation pellets of vanadium-ilmenite concentrate cannot meet the requirements of the blast furnace slag system for the ingredient requirements of calcium and magnesium, the effects of oxidation temperature, oxidation time, calcium salt addition and bentonite addition on the phase composition, compressive strength and porosity of the oxidized pellet are studied. The results show that with the increase of oxidation temperature, there are two oxidation processes in which magnetite is converted into hematite and ilmenite is converted into iron plate perovskite; with the increase of oxidation temperature and the extension of oxidation time, the compressive strength of oxidation pellets increases and the porosity decreases; with the increase of calcium salt addition, the compressive strength of oxidized pellets is decreased significantly, and the porosity is increased significantly; the compressive strength and porosity of the oxidized pellets with 1.5% calcium hydroxide are 3 449.9 N/P and 22.70%, respectively, under the conditions of 0.75% bentonite addition,120 min oxidation time and 1 200 ℃; the compressive strength and porosity of the oxidized pellets with 1.5% calcium carbonate are 3 168.6 N/P and 25.25%, respectively. The results can lay a raw material foundation for improving the blast furnace inlet ratio of vanadium-ilmenite concentrate and further reduce the energy consumption level of blast furnace smelting process.