Abstract: This series comprises of 24 cases of carcinoma of bladder. Among 24 cases, 11 cases were treated with radiofrequency in combination with irradiation, 8 with irradiation alone, and 5 with radiofrequency alone. The temperature within the bladder was raised to 40.5-41.5℃. When radiofrequency was combined with irradiation, the dosage of the latter was reduced to 175 rads, with the total dosage of 2500-4000 rads. When radiation therapy alone was used, the total dosage was 3000-6000 rads. The results of radiofrequency therapy combined with radiation therapy were: clinical cure in 1 case, significant improvement in 7 cases, improvement in 2 cases, and failure in 1 case. In the group treated with irradiation alone, 6 cases were graded as improved, and failure in 2 cases. In the group treated with radiofrequency alone, 3 patients showed improvement while there was no response in 2 cases. These results show that in the treatment of carcinoma of bladder, the therapeutic effect of radiofrequency combined with irradiation is significantly superior to that of either pure radiation therapy or pure radiofrequency therapy （X~2=14.182, P＜0.01）. With the combination therapy, there was rapid decrease or disappearance of the irritation symptoms of bladder, improvement in appetite, and weight gain, and patients felt better generally. Therefore, we believe that this type of therapy is effective and reliable in the treatment of carcinoma of bladder.