The utility model provides an annealing mechanism and enameled wire production system, this annealing mechanism includes: the annealing pipe, the both ends of annealing pipe are incoming line and outlet respectively, and the bottom inner wall of annealing pipe is the arc of undercut, the line body gets into annealing from the incoming line and manages, discharges from the outlet after the annealing mechanism heating. The utility model has the advantages of can prevent to cause the damage to line body surface face among the annealing process, and then guarantee the japanning quality of the line body.