Objective: To investigate the clinical efficacy of Beckenbaugh surgery in the treatment of congenital swan neck deformity. Methods Beckenbaugh was performed on 2-4 fingers of congenital swan neck deformity. Results The course of the patient was smooth, the incision was healed in one stage, and the range of PIP flexion and flexion was 70°～80°. The follow-up of 14 months of hands and 2-4 finger PIP deformity correction, functional activities, DIP slightly hammer-shaped deformity, according to the Chinese Medical Association Surgical Society Partial Functional Assessment of Upper Limbs, Hand Function Assessment: Good. Conclusion Beckenbaugh surgery for congenital swan neck deformity has the advantages of rapid recovery and satisfactory postoperative function, which is worthy of clinical promotion.