The dog's recurrent laryngeal nerve defect (1cm) was repaired by near vessels implantation of heat denaturation muscles as a bridge. Three months after operation, regenerative nerve neurite smoothly passed through muscle bridge, grew into distal isogenous nerves and formed function joint. The implanted vessels grew and branched in the muscle bridge. Six months later, the motor end plates of caryngeal muscle grew well, laryngeal electromyography showed that nerves contraction of laryngeal muscles built. Laryngoscopy showed that vocal cord moved to the normal position. The voice perfectly recovered.