The invention relates to a copper wire for recovering surface softness by rearranging molecular crystal lattices in annealing treatment. A copper material is used as a blank, the copper material is industrial pure copper, a wire rod is wound after being annealed in a water tank, a spool and a wire passing wheel are arranged in the water tank, the wire shaft is fixedly arranged in the water tank, one wire connecting port of the wire shaft is in contact connection with the wire passing wheel, and the wire rod passing through the wire passing wheel is fixedly connected with a driving wheel and adriven wheel on a wire winding shaft. The copper wire for recovering surface softness by rearranging molecular crystal lattices in annealing treatment provided by the invention has the beneficial effects: annealing treatment is carried out in the water tank, when the water tank moves through a guide rail, friction cleaning force is provided for the spool in the water tank, a felt can adsorb a particle floating layer in water, the surface of a wire is cleaned more thoroughly, water in the water tank can be replaced in time, the cleaning effect is good, and the softness of the wire is improved,so that the quality of enameled wires is guaranteed.