PURPOSE: To investigate the results of surgical treatment of displaced intra-articular fracture of the calcaneus using a Y-plate. MATERIALS AND METHOD: We have studied 22 patients who underwent surgical treatment of displaced intra-articular fracture of the calcaneus in our hospital from March, 1998 to August, 2000. The fractures were identified according to Eastwood classification, there were 8 cases of type I, 10 cases of type II and 4 cases of type III. The axial and Bohler angle of lateral views were compared preoperative and postoperative period. Functional evaluation was measured by Carr 's method. RESULT: The average Bohler angle before the operation was 5 degrees and after the operation it has been up to 28 degrees. In functional evaluation, 3 cases were excellent, 15 cases were good, and 4 cases were fair. CONCLUSION: Fixation using a Y-plate can be used easily for restoration of anatomical dimension of the calcaneus in the operative treatment of displaced intra-articular fracture. It could be helpful for firmer fixation of the posterior facet.