Because the technique of explosive consolidation of powders can produce high temperature and high pressure in very short time, it is promising in the exploiture of new materials especially in the consolidation of powders. However, the research of its mechanism is inadequate now. The research of the state equation of powders as well as the macroscopical and microcosmic mechanism of explosive consolidation of powders is discussed in this paper. Finally some suggestions for future development trend are put forward.