The utility model discloses an end face oil groove processing machine. The device comprises a positioning seat, a feeding motor and a guide cylinder are arranged on the positioning seat; a sliding shaft is arranged in the guide cylinder; the motor is connected with a ball screw, one end of the sliding shaft is matched with the ball screw for feeding, the other end of the sliding shaft is rotationally provided with a rotating frame, the rotating frame is provided with a locking device used for locking rotation of the rotating frame and the sliding shaft, the rotating frame extends outwards to form a plurality of supporting arms, the supporting arms are provided with cutting motors, and the cutting motors are connected with cutting edges. When the end face oil groove processing machine is used, a workpiece is positioned through the positioning clamp; according to the end face oil groove machining machine, the rotating frame is rotated to align the cutting edge with the position, needingto be machined, of the oil groove in the workpiece, locking is conducted through the locking device, then the cutting motor is started for cutting, feeding is conducted through the feeding motor, theend face oil groove can be machined, the end face oil groove can be efficiently machined, and the oil groove machining cost can be effectively reduced.