The effect of basicity (R) on sintering of Cr-bearing vanadium and titanium magnetite ore was studied via sintering pot experiment on the basis of production conditions in Chengde Jianlong Special Steel Company, and the sinter characterized. The results showed that with the increase of basicity, the sintering rate rose firstly, and then fell with a increasing burning loss, leading to a max sintering rate of 19.70 mm/min at R=2.5. Tumbler strength of sinter had the maximum value was 63.53% when the basicity was 2.7. Meanwhile, increasing the basicity was beneficial to the improvement of low-temperature reduction degradation index (RDI) of sinter, and its maximum value of powders size larger than 3.15 mm was 75.09% at R=2.7. Moreover, with the increase of basicity, productivity rose firstly, then fell, and had a maximum value of 1.35 t/(m2×h) when R=2.5. The fuel consumption ratio rose at R=2.1~2.5, and its minimum value was 43.21 kg/t when R=2.1. In addition, increasing basicity was also beneficial to the softening properties through improving the beginning and ending softening temperatures of sinter. The improvement in mineral composition and structure aroused by increasing the basicity was the essential reason for improving sintering properties. Overall, the optimal basicity of V-Ti-Cr sinter for industrial application was 2.5.