Treatment of malignant bladder cancer includes drug therapy, surgery, chemotherapy, radiation therapy and other methods of treatment. 1. Drug therapy: it is a common treatment method for malignant bladder tumor, such as intravesical instillation of mitomycin or adriamycin, which can effectively inhibit the recurrence of malignant bladder cancer, but generally cannot achieve the goal of complete cure by drug therapy alone. 2. Surgery: Surgery is the main clinical treatment method for malignant bladder cancer. If the tumor is less malignant and has a thin base, local excision and electrocautery of bladder tumor can be carried out; if the tumor is extensive and locally scattered, total cystectomy is needed. 3. Adjuvant chemotherapy: adjuvant chemotherapy can help to consolidate the treatment effect of surgery and reduce the recurrence of malignant bladder tumors, and nutritional supplement should be paid attention to before chemotherapy. 4. Radiotherapy: radiotherapy is also very effective in relieving malignant bladder cancer, but this method basically plays the role of adjuvant therapy, usually used in combination with surgery and chemotherapy, especially for advanced bladder tumors, which can play a very good role of adjuvant therapy. Once malignant bladder cancer is diagnosed, it should be treated actively. During the treatment period, patients should take good care of themselves, keep their moods happy and have timely rechecks.