Objective To investigate curative effect of the suspension micro-laryngoscope under general anesthesia in treatment of vocal cysts,vocal cord polyps,vocal nodules.Methods 320 cases of vocal cord surgery were treated in our hospital from March 2008 to March 2013 and 320 patients of vocal cysts,vocal cord polyps,vocal nodules were all given suspension micro-laryngoscope under general anesthesia.Patients with hoarseness conditions,the lesion,vocal color,vocal closing conditions were observed to evaluate the therapeutic effect.Results In 320 cases,280 cases were cured,30 cases were improved and 10 cases were invalid.The effective rate was 96.9％.After operation,a 6-month-long follow-up study was conducted and it exactly cleared vocal cord lesions and no residue by laryngoscope.All patients in the hospital were significantly improved in their pronunciation 1 week to 3 months after operation,pronunciation of patients was gradually restored.Follow-up of six months to two years showed no recurrence.Conclusion The suspension microlaryngoscope under general anesthesia could completely remove vocal cord lesion.It has a good treatment effect,low recurrence rate and worthy of clinical application.