The invention discloses an integrated circuit (IC) chip laser spot welding device, comprising a rack, an IC chip, a fixing seat, a servo motor, a screw rod, a mobile mounting seat, a laser welding head, a location seat, a rotating motor and a wire welding machine. Compared with the prior art, the wire welding machine conveys thin copper wires to an IC chip welding position; a cathode and an anode in the laser welding head are electrified to generate high-energy electron beams; the electron beams are converged into one spot by a collecting lens; the servo motor drives the screw rod to move the mobile mounting seat front and back, so that the welding of the IC chip is completed; after one side is processed, the servo motor is rotated, so that the other side of the IC chip is welded and processed; in such a way, automatic welding is realized, and production efficiency is improved.