Abstract: For a long time, the estimation to iron ore has been concentrated on its chemical composition, size distribution, mineral characteristics under normal temperature by researchers, while the research to the physical chemistry reacting characteristics of iron ore under high temperature was very little. On the basic of experiment and think deeply, the concept of iron ore basic sintering characteristics have been introduced, the concept included assimilation, fluidity of liquid phase, self-intensity of adhere phase, and creating ability of SFCA and so on.Study on the iron ore physical chemistry characteristics under high temperature will be very important to complete sintering basic theory, improve sinter quality, optimize sintering technology process.