From June 1983 to Jan. 1985, 75 patients with early stage non-Hodgkin's lymphoma were treated in our hospital. The ages ranged from 3 to 65 years. The ratio of male to female was 2.75. The intermediate and high grade malignant lymphoma comprised 89.3% of the whole group. By clinical staging, there were 23 Stage I, 44 Stage II, and 8 Stage III lesions. The primary sites were: 33 in the Waldeyer's ring, 22 in lymph nodes, 10 in the nasal cavity and 10 in the other organs. The two-year survival rate of the whole group was 69.3%. In view of the results, the prognosis was related to the staging, A or B symptoms, primary site and CR or PR after treatment, but the age was irrelevant. The results also showed that intermediate or high grade malignancy gave no significant difference in the two-year survival rate. It might be due to the fact that they were originated from the large cell type of lymphoma in the intermediate group and possessed similar malignant properties as the high grade lymphoma.