Objective: To explore the mechanism of electroacupuncture improving the cervicogenic sensorineural hearing loss and chronic inner ear ischemia induced by vertebroarterial type cervical spondylosis (VCS) . Methods: Sixty adult Japanese big- eared rabbits were divided into the control group,the 2nd week model group(2WM group) , the 4th week model group(4WM group), the 8th week model group(8WM group) and electroacupuncture (EA) group randomly, and 12 animals in each group. Chronic vertebrobasilar insufficiency...