In the past 13 years period, authors experienced 14 cases of giant cell tumor, 3 of which were treated by bone cementing after curettage. The results of various methods of treatment applied were compared and literatures surveyed. The followings were noted: 1. The most efficient method of treatment for giant cell tumor is en bloc resection. 2. The method of bone graft after curettage has such disadvantages as high recurrence rate and sequelae due to long periods of immoblization, especially for the large lesion with severe bone destruction. 3. Bone cementing after curettage seemed to be a choice in the methods of primary treatment of long bone giant cell tumor, especially useful for the tumors near the knee joint; the main advantages over other methods of treatment were considered to be technical simplicity and lack of complications.