With the tightening of the restrictions on imported ore powder and the increase in prices, the contribution rate of domestic ore powder to crude steel production is increased year by year, and the efficient development and utilization of the abundant vanadium-titanium magnetite resources in Panxi region of China has attracted the attention of steel enterprises. Such fusion characteristic index values as softening temperature, hemispheric temperature, flow temperature and softening interval are used to approximately characterize the liquid phase formation and flow characteristics of ore powder, and the fusion characteristics of mixed vanadium-titanium ore powder and four kinds of imported ores are tested under the condition of constraining SiO₂ mass fraction and alkalinity (binary alkalinity of 2.0), while the fusion characteristics of vanadium-titanium ore powder and imported ore powder are compared by phase diagram analysis and mutual matching test. The results show that the fusion characteristics of different kinds of iron ore powder are different, and the softening temperature of the three kinds of vanadium-titanium ore powder of Heigutian, Ruihe and Baicao powder is not higher than 1350 °C, and the hemispheric temperature and flow temperature are not higher than 1410 and 1490°C respectively, which is more conducive to low-temperature sintering production. The softening temperature, hemispheric temperature, flow temperature and softening interval of vanadium-titanium ore powder mixed with 15% Heigutian powder + 55% Ruihe powder + 30% Baicao powder are 1332.5, 1 382.5, 1470.5 ℃ and 138 ℃, respectively. The incorporation of No. 1 and 2 of Australian ore is favorable to the fusion characteristics of vanadium-titanium mixed powder; when the ratio of Chilean ore powder exceeds 20% or Brazilian ore powder exceeds 50%, the liquid phase of the mixed ore powder is difficult to generate and the fluidity becomes poor, which negatively affects the quality of the sinter. After a fixed mixed vanadium-titanium ore powder is used with imported ore powder, the fusion characteristics of the mixed ore powder can be complementary and superimposed.