Through active treatment, patients with carcinoma in situ of vocal folds have the chance to achieve clinical cure, but there are individual differences in the specific treatment effects, and radical radiotherapy or surgery is usually adopted. If the cancerous lesion of vocal cord in situ is relatively limited in scope, usually there is no invasion of vocal cord muscle layer, which can cause hoarseness and other symptoms, radical radiotherapy has a longer cycle, but it can retain better pronunciation function, while surgery has a relatively shorter cycle, and usually it can be discharged from the hospital in 1~2 weeks. Through radical radiotherapy or surgical treatment can achieve a better therapeutic effect, the vast majority of patients with a high five-year survival rate, there is a chance to achieve clinical cure, but should still be followed up regularly to prevent recurrence.