Buccal cancer, also known as buccal mucosa cancer, is curable in early stage. Early stage patients can be cured if they are detected as early as possible and operated thoroughly, generally assisted with radiotherapy after operation, followed by active rehabilitation. Buccal mucosa cancer is mainly caused by bad habits, such as chewing tobacco, betel nut, drinking alcohol, etc., the residual tooth roots and broken crowns appear in the mouth, the buccal mucosa is stimulated for a long time, and the white spot lesions lead to ulcerative changes, causing buccal mucosa cancer. Most of the buccal mucosa cancer will have facial swelling, difficulty in opening mouth, ulceration, sometimes it will be difficult to swallow, and many herpes grow in mouth, and slowly increase in size. Early stage buccal mucosa cancer can be treated by surgical resection and systematic lymph node dissection, with postoperative observation or auxiliary radiotherapy to achieve cure. Early stage buccal mucosa cancer can be cured through effective treatment. In daily life, one can drink more warm water, eat light diet and keep a happy mood.