The invention discloses a turning-milling composite numerical control machine tool, and belongs to the technical field of numerical control machine tools. The machine tool comprises a machine tool body, a main shaft box component assembly, a servo motor, a longitudinal and transverse tool rest assembly, a tailstock assembly and a chip cleaner, the main shaft box component assembly is arranged on the machine tool body, the servo motor is fixedly connected to the left side surface of the main shaft box component assembly, and a clamp is arranged on the right side face of the spindle box component assembly. Parts are processed by all parts carried by the machine tool bed, the processes of turning, milling, boring, cutting off and the like are mainly carried out on the processing of a copper retainer, and a main shaft unit structure is adopted to ensure the high rotating speed and high precision of the machine tool; meanwhile, the longitudinal and transverse knife rest assembly is utilized, and a linear guide rail, a screw rod and a servo motor are adopted for transmission, so the part machining precision and the machine tool efficiency are improved; and the longitudinal and transverse tool rest assembly is used for controlling the outer circle tool, the power head, the cut-off tool and the hole boring tool to be close to the part, so the purpose that one machine tool has multiple purposes is achieved, and the effect that workpieces are machined in different types is achieved.