The invention discloses a high-efficiency degreasing device for mechanical parts, wherein the high-efficiency degreasing device includes an outer frame; the bottom end of a sleeve slot is fixedly connected with a fixed hanging rod; the left side of the top end of the interior of the outer frame is fixedly connected with an auxiliary rod; the bottom end of the auxiliary rod is fixedly connected with a push rod sliding slot, the inner wall of the left side of the outer frame is rotatingly connected with a cam, and the right side of the cam is connected with a push rod in a rolling manner; the bottom end of the fixed hanging rod is fixedly connected with a clamping device; two sides of the bottom end of the clamping device are fixedly connected with part fixing placing frames symmetrically; two sides of the interior of the outer frame are each fixedly connected with a shaft fixing block; one side of each shaft fixing block is rotatingly connected with a rotating shaft; one side of each rotating shaft is fixedly connected with a degreasing tank; the bottom end of the interior of the outer frame is fixedly connected with a shaking device. The invention relates to the technical field ofmechanical processing equipment. The high-efficiency degreasing device for the mechanical parts achieves the purposes of conveniently taking out and placing the mechanical parts, shaking the parts inthe degreasing tank and improving the degreasing effect and speed.