The effect of binary basicity (mass ratio of CaO to SiO₂) on the sintering of titanomagnetite concentrate was investigated in an experimental-scale sintering pot. The results indicated that increasing basicity can improve yield, productivity, and reduction index (RI) of the finished sinter. However, sinter strength and reduction disintegration index (RDI_+3.15) have a significant decrease at the basicity varying from 1.0 to 2.0. It also proved that titanomagnetite and titanohematite are the main minerals in sinters, while kirschsteinite and calcium silicate (CS) are the main melted phases. The amount of perovskite increases then slightly decreases with the increasing basicity as silicoferrite of calcium and aluminum (SFCA) began to generate and increase with basicity from 1.5 to 3.0. It is concluded that adjusting sinter basicity is capable to restrain the adverse effect of TiO₂ on sintering of titanomagnetite concentrate.