The invention discloses an electric spark cutting machine tool. The electric spark cutting machine tool comprises a machine tool body, a base, a worktable, a lifting frame, an air inlet, an air blowerand a controller, wherein a heat dissipating cabinet door is mounted at the right side of the outer part of the machine tool body, and the base is mounted at the upper part of the right side of the outer part of the machine tool body; the worktable is mounted at the upper part of the outer part of the base; the lifting frame is mounted at the upper part of the outer part of the machine tool body;the air inlet is formed in the inner wall of the right side of the machine tool body; a connecting plate is mounted in the machine tool body; a ventilating channel is arranged in the connecting plate; a hydraulic cylinder is mounted in the worktable; and a hydraulic rod is arranged at the end part of the hydraulic cylinder. According to the electric spark cutting machine tool, the machine tool body, the air inlet, the connecting plate, the air blower, the controller, the hydraulic cylinder and a clamping device are arranged, and thus the problems that electronic device in the machine tool cannot be subjected to heat dissipating timely when the machine tool works for a long time, and the electronic device is easily damaged and cannot fix a workpiece, and deviation is easily caused during cutting, can be solved.