The effect of Ti-oxide on the sintering behaviour of iron ore has been studied by doping pure TiO₂ to a sinter blend in laboratory tests. The results showed a considerable effect of TiO₂ on sinter strength, where the tumble index increased with increasing TiO₂% (up to 2.0%). However, doping more than 2.0% TiO₂ to the sinter blend decreased its strength. The melting point of the sinter was also affected by increasing the TiO₂ content, indicating a possible change in the coke consumption during industrial-scale sintering of Ti-bearing ores. Optical and electron microscopy studies of sinter structures confirmed a general improvement in the overall pore structure and sinter melt by increasing TiO₂ content of the sinter blend up to 2.0%. An important feature of the sinter structure was the observation of perovskite phase formation and an increase in the volume fraction of this phase obtained by increasing TiO₂. The formation of this perovskite phase was considered as an important reason for the reduction of the sinter melting point. Also, doping TiO₂ to the sinter mix resulted in stabilizing and increasing the volume fraction of the larnite phase in the sinter structure.