Objective To observe the clinical efficacy of Wentong needling method in the treatment of long-term cough cases after common cold. Methods Wentong needling method was used in the treatment of 30 cases with long-term cough after common cold. Acupoints including Quchi (曲池 LI 11, left side), Hegu (合谷, LI 4, left side), Lieque (列缺, LU 7, right side), Fenglong (丰隆', ST 40, right side), Chize (尺泽, LU 5, right side), Zusanli (足三里, ST 36, right side), Zhaohai (照海, KI 6, left side), Taichong (太冲h, LR 3, both sides), and Waiqiu (外丘, GB 36, left side) were selected. The treatment was given every other day. After one treatment course, the relation between the long-term cough cases after common cold and Wentong needling method clinical efficacy was observed from aspects of different ages, disease duration and disease degree. Results There were 18 cured cases (60.0%), 8 markedly effective cases (26.7%), 4 effective cases (13.33%), and 0 invalid case (0.0%). The total effective rate was 200%. The treatment efficacy of cough patients after common cold of less than 24 months was better than that of more than 24 months. Along with the increasing of age, the cured and markedly effective rate was of certain downward tendency. Along with the increasing of treatment times, the cured and markedly effective rate increased. Conclusion The clinical efficacy of Wentong needling method is obvious in the treatment of long-term cough cases after common cold.