Stainless‐steel and Mo sheathed PbMo6S8wires have been fabricated by hot working from modified PbS, Mo, and MoS2mixed powders which were prepared by reacting Pb, Mo, and S at 530 °C. Critical current densities were investigated for different preparation conditions, and it is revealed that obtaining continuous current path between PbMo6S8grains is the most important factor to achieve high critical current density. TheJcvalue of 2.8×104A/cm2(8 T), 7.8×103A/cm2(15 T), and 1.3×103A/cm2(23 T) was observed for the PbMo6S7.0wire heat treated at 700 °C.