Whether malignant thymoma is curable or not is related to the tumor stage. Generally, early malignant tumors can usually achieve clinical cure after active treatment. If it is early malignant thymoma, the tumor has not broken through the peritoneum, early detection and timely surgical treatment usually can be cured. Early treatment is mainly based on surgical resection, usually open thoracotomy or thoracoscopic surgery is used to remove the tumor and the surrounding soft tissues, so as to achieve the effect of clinical cure. After surgery, radiotherapy or chemotherapy is also needed according to the condition. Intermediate malignant tumors may also be clinically cured after active treatment. Surgery is usually the main treatment, and after tumor resection, radiotherapy and chemotherapy are used as adjuvant treatment to alleviate the progression of the disease and improve the patient’s quality of life. Advanced malignant tumors usually cannot be cured, but through active and effective treatment, the survival period of patients can be effectively prolonged and the quality of life of patients can be improved, usually radiotherapy and chemotherapy are the main focus, the main purpose of which is to inhibit the growth of cancer cells and slow down the progression of the disease to the maximum extent. If malignant thymoma is diagnosed, patients should seek medical treatment in time and actively cooperate with doctors, and should not take any action without authorization in order to avoid delaying the condition. Before surgery, one should take low-salt and high-protein diet, pay attention to rest and avoid overwork.