Chronic hoarseness in the throat is clinically associated with chronic laryngitis, vocal cord nodules, vocal cord polyps, and laryngeal cancer. For hoarseness, fiberoptic laryngoscopy is needed to basically determine the first three diseases. The diagnosis of laryngeal cancer can be confirmed only after biopsy. The treatment of chronic laryngitis is mainly to talk less, change the way of speaking loudly, avoid stimulation such as dust and less smoking. Symptomatic treatment can be given, such as budesonide nebulizer inhalation, golden voice opening pill oral, etc., which will have certain therapeutic effect. For long-term hoarseness caused by vocal cord nodules and vocal cord polyps, laryngoscopic removal of vocal cord nodules and vocal cord polyps is often used, and post-operative voice abstinence and nebulized inhalation are required, which have obvious therapeutic effects. If laryngeal cancer is diagnosed, partial resection of laryngeal cancer should be performed, and postoperative radiotherapy and chemotherapy should be used to treat the cancer.