To evaluate effects of radiation therapy methods and histology types on survival rate of skin cancer. 72 casesof skin cancer were treated by radiation therapy from 1977 to 1992. Relation between different therapy methods

histology type

total radiation dose

fractionated dose and survival rate was studied. Total dose was from 3.5 to 8.5Gy. 19 patients died of the reason related to skin cancer. The 5 year and 10 year survival rates:Basal cellcarcinoma was 87.8 %

63.2 %

squamous cell carcinoma was 57.1 %

30.1 %

Basal cell carcinoma for 3.0-3.5Gy offractionated dose was 78.5 %

70.0%

for routine fractionated dose was 79.8 %

62.9 %

for irradiated field>2cm ofedge of tumor was 69.2%

40.4%

for that<2cm was 88.0%

29.2%. 5 and 10 years survival rates of Basal cellcarcinoma were higher than those of squamous cell carcinoma(P<0.05). It was optimal that fractionated dose ofper day was 3.0￣3.5Gy. With total radiation dose of 51￣60Gy