Medium-scale part minuteness milling machine tool

The invention relates to a medium-scale part minuteness milling machine tool. The medium-scale part minuteness milling machine tool comprises a machine tool body, wherein the machine tool body is provided with two Y-direction feeding guide rails, and an operating platform unit is arranged on the Y-direction feeding guide rails of the machine tool; a milling unit sliding table comprises a sliding table with vertical direction feeding, two X-direction guide rails and a sliding table with horizontal direction feeding, the sliding table with the vertical direction feeding is provided with a first rotor and a first stator, and the two ends of the first rotor are connected with the sliding table with the vertical direction feeding; the first rotor is fixedly connected with a first fixing device, and the sliding table with the vertical direction feeding is arranged on the first fixing device through two Z-direction guide rails; and the sliding table with the horizontal direction feeding is arranged on a beam through the two X-direction guide rails, and the beam is fixed on the machine tool body through two stand columns. The medium-scale part minuteness milling machine tool provided by the invention has the advantages that the consumption of energy sources is greatly reduced, the space occupied by the machine tool body is notably saved, and the scale matching of a processed object and processing equipment is realized.