53 patients of previously untreated Stage I & II Non-odgkin's Lymphoma in head and neck treated with irradiation at Yonsei Cancer Center from January, 1970 to December, 1978 were retrospectively analyzed. 5 year survival rate and 5 year disease free survival rate were 51.5% and 42%. Local control rate by irradiation was 92.4% with mainly 4,000~6,000 rads. 21 patients suffered relapses after radiotherapy, 4 cases recurred within irradiated area, 4 cases at contiguous site of irradiation field, and 13 cases recurred at distant area, more commonly below diaphragm. Most cases relapsed within 1 year 6 months after treatment. Optimum irradiation field for head and neck localized lymphoma, prognostic factors and usefulness of chemotherapy are also discussed.