A clear aligner manufacturing method includes the steps of collecting a users dental data planning out an upper and a lower teeth correction member according to the collected dental data using the upper and lower teeth correction members to fabricate an elastic upper and an elastic lower correction splint, respectively fitting the elastic upper and lower correction splints onto an upper and a lower fixing mold, respectively heating the elastic upper and lower correction splints and an elastic connecting member to 180-280° C. causing the elastic upper and lower correction splints to fuse into a top and a bottom, respectively, of the connecting member and removing the upper and lower fixing molds from the upper and lower correction splints to obtain a clear aligner, which can apply sufficient force to correct the users upper and lower teeth at the same time.
