The various factors that influence the reducibility of iron ore and the characteristic of reduction kinetics was systematically studied in this paper. The reducibility of iron ore was affected by the chemical composition， po- rosity and mineral composition. Overall， the basic oxide will promote the reduction of iron ore， while the acid oxide will retard the reduction. The reducibility of iron ore can be improved by increasing the content of micro pore and easily reduced mineral phase， such as calcium ferrite. Generally， unreacted core model was applied to study the gas- solid reduction kinetics of iron ore. The controlling steps were different in different stages of the reduction. In the case of reduction from wustite to metal iron， the reduction was controlled by gas diffusion and interface chemical re- action at the early stage of reduction. At the final stage， it was controlled by interface chemical reaction. According to the current study and resources status， two aspects on the study of iron ore reduction were proposed:① the in- fluence of Al 2 O 3 ， K 2 O， Na 2 O， ZnO on the reduction behavior of iron ore;② the study of gas-solid reduction kinet- ics of actual BF ferrous burden， such as sinter， pellet and lump.