The invention belongs to the field of mechanical manufacturing, and particularly relates to a machine tool clamp. The machine tool clamp comprises a left clamp part and a right clamp part, the left clamp part and the right clamp part are symmetrically arranged and are the same in structure, the left clamp part comprises a connecting pulley, the upper part of the connecting pulley is connected witha fixed bracket, the fixed bracket is provided with at least three movable clamping strips, the two ends of each movable clamping strip are provided with clamping grooves, and the multiple movable clamping strips are connected with the fixed bracket through flexible connecting rods. The flexible connecting rods of the machine tool clamp can adapt to various irregular shapes, the positions of themovable clamping strips connected to the flexible connecting rods are adjusted adaptively, and thus a workpiece can be clamped.