The invention discloses an intermittent wire feeding device which comprises a cam (1), a main shaft (2), a rack (3), a wire passing groove (4), a dragging and clamping assembly (5), a motor (6) and the like. An adjustable mechanism is additionally arranged, an air cylinder is selected to serve as a driving element of a clamping mechanism, the size of a driving force arm is designed reasonably, thus enough driving torque is ensured, and the contour of the wire passing groove (4) is designed to be in an S arc shape. The device overcomes the following defects of similar equipment in the market at present that the wire feeding length cannot be adjusted accurately in time according to the production requirement, due to wire moving, the cut length is not uniform, due to insufficient dragging force, the equipment gets stuck, due to too small clamping force, sliding occurs, the cut length is too short, due to too large clamping force, wires are damaged by clamping, and installing and debugging are difficult.