Objective To explore the clinical efficacy of posterior single-door laminoplasty for the treatment of multi-segment cervical spondylotic myelopathy(MCSM)with cervicogenic headache.Methods From January 2018 to June 2021,31 patients with MCSM and cervicogenic headache were treated with posterior cervical single-door laminoplasty.At pre-operation and postoperative 1,3,12 months,clinical efficacy was evaluated by the Japanese Orthopedic Association(JOA)score,and the intensity of headache was evaluated by the neck disability index(NDI)"headache problem"Q5 score.Results All the operations were successfully completed,and all the patients were followed up for more than 12 months.The JOA scores improved significantly at post-operation compared to pre-operation,all with a statistically significant difference(P<0.05).Except for 1 mild headache patient who had no relief after surgery,all other patients'headache had varying degrees of relief.Conclusion Posterior single-door laminoplasty can alleviate the clinical symptoms of MCSM with cervicogenic headache.