The utility model relates to an inductor for induction quenching of shaft parts, and particularly relates to an inductor for induction quenching for carrying out induction heating and quenching on shaft parts. The inductor comprises an induction coil, wherein the induction coil is an annular pipe. The inductor is characterized in that a spray ring is arranged on the outer side of the induction coil; the spray ring is an annular pipe, and is arranged on the same plane together with the induction coil; the spray pipe is connected with the periphery of the induction coil through at least two connecting ribs; blow holes are evenly distributed on the circumference of the lower side of the spray pipe; the axes of the blow holes incline towards the circle center of the spray ring. The shaft parts are subjected to induction quenching by adopting the inductor for induction quenching of the shaft parts, and the quality of the shaft parts can be improved.