To clarify the effect of additives on the reduction rate of hematite with hydrogen and the role of additives, the loss of weight, the lattice constant, and the electrical conductivity have been measured for pure and doped hematite. The reduction rate was increased and the electrical conductivity was decreased by the addition of Li₂O and trivalent oxides （Al₂O₃ and Ga₂O₃）. The effect of additives on the electrical conductivites is discussed in term of electron transfer mechanism. In the temperature range of 280℃ to 425℃, hematite is directly reduced to metallic iron. The kinetic data show good agreement with Avrami equation.