Abstract: Objective:To investigate the clinical characteristics and therapies of the lumbar spinal canal stenosis coupled with lumbar disc protrusion the elderly.Methods:Eighteen cases were operated on with Spinal decompression and spinal cord nucleus extraction,the other 18 cases were operated on with spinal cord nucleus extraction and internal fixation.Results:Following-up from 1.5 to 5 years,the efficient race of the patients using the spinal cord nucle us extraxtion and spinal clecompression is 83.3%,the efficient of these cases added to internal fixation is 94.4%.Conclusions:The elderly lumbar spinal canal stenosis coupled with lumbar disc protrusion should be operated on as soon as possible.The articular facet hyperplasia should be fixed and the anti-osteoporosis therapy should be carried out pre/post-operation.