Objective:A curative effect comparison on treatment of developmental cervical spinal Stenosis and cervical disc herniation by different procedures of posterior cervical Spine,which can provide theoretical support for two clinical operational choices. Methods:This paper reviewed 73 cases clinical data,which adopted two different posterior cervical spine procedures(single-door decompression laminoplasty or laminectomy lateral mass fixation)to treat patients with developmental cervical stenosis and cervical disc herniation,including 35 cases for single-door decompression laminoplasty and 38 cases for laminectomy lateral mass fixation. It also recorded the two group information like age,gender,surgical time,blood loss,morbid state,incidence of C5 nerve root palsy,JOA score,VAS score to compare the difference of two surgical procedures. Results:Compared with pre-operation,the postoperative symptoms and signs of both groups in this study improved obviously (P < 0.05). The significant difference was found in indicators of surgical time,blood loss,JOA scores after one-week surgery and its improvement rate,incidence of C5 nerve root palsy symptoms(P < 0.05),with the rest of indicators between two groups were not observed. Conclusion:Laminectomy lateral mass fixation can early ease patients’ neurologic symptoms who suffered from developmental cervical spinal stenosis and cervical disc herniation,and two kinds of operations were similar in last follow-up curative effect. However,single-door decompression laminoplasty owns advantages like shorter operation time,less intraoperative bleeding,incidence of C5 nerve root palsy symptoms.