Avulsion of triceps tendon from the olecranon is a rare injury. Since the first report of Partridge in 1968, fewer than 30 instances have been recorded in the English literature. The authors have experienced a case of the avulsion of the triceps tendon in 25 year-old male which was caused by a accidental fall from one meter height. The surgical treatment, the use of heavy wire sutures passed through the tendon and through holes drilled in the olecranon, produced successful results in two and half years follow-up period.