Whether oral cancer can be cured or not needs to be considered comprehensively, and the efficacy varies because of the different sites of incidence. Oral cancer is one of the common oral malignant tumors, mainly including tongue cancer, lip cancer and so on. To cure oral cancer, early diagnosis and early surgical treatment are the most important. Whether it can be cured or not is closely related to the size of the tumor and the metastasis of lymph nodes. For most of lip cancer and floor of mouth cancer, surgical resection plus lymph node dissection and postoperative adjuvant radiotherapy can also achieve good results. Therefore, the overall control rate of oral cancer is about 50% in 5 years, and it can be said that through a comprehensive treatment with surgery as the main treatment, oral cancer can be controlled by 50% of people through standardized treatment. To prevent oral cancer, it is most important to develop the habit of maintaining oral hygiene and brush your teeth frequently to remove the bad habits of the mouth. You should go to the hospital regularly to check your teeth and oral mucosa, and deal with any problems in time. It is important to know some knowledge about oral cancer prevention and some harmful effects of oral cancer. For oral cancer, early detection and early treatment should be achieved, so that the chance of treating oral cancer will be greatly increased and a good prognosis will be achieved.