The expandable graphite prepared by chemical oxidizing process was mixed with CuO and Fe₃O₄,respectively,and then expanded at 900 ℃. The expanded volumes of the doped exfoliated graphite (EGs) were tested,and the IR screening characteristics of the doped EGs were tested by a static screening testing system. Results show that the expanded volume of CuO doped EG decreases from 245 mL·g^-1 to 130 mL·g^-1,and the correspongding shielding efficiency decreases from 78.4% to 48.3%. The expanded volume of Fe₃O₄ doped EG decreases to 190 mL·g^-1,and its shielding efficiency decreases to 73.7%. The IR shielding efficiencies of the two doped EGs are both inferior to that of the EG.