Achilles tendon is the most powerful tendon of the body and increases efficiency in weight bearing and walking capability. Since pares' report about the rupture of the Achilles tendon many authors have reported various causes, diagnostic and therapeutic methods. Most of the authors emphasized the early diagnosis and treatment resulted in good prognosis. There are many methods for the diagnosis of the Achilles tendon, roentgeography, angiography, electromyography, histologic examination and Thompsons test. The causes of the rupture of the Achilles tendon are direct and indirect injury. The two methods of treatment are conservative management and surgical treatment. Whether the cause of the injury is direct or indirect, restoration of function after treatment must be emphasized and the proper method of treatment must be determined by the degree of injury. Clinical analysis was done on 15 cases of Achilles tendon rupture treated at Orthopedic Department of Capital Armed Forces General Hospital from Oct. 1973 to Oct. 1978 with the following results. 1. In sex distribution, there were 13 male cases and 2 female cases and the age range of 20 to 30 years old was the most frequent (67%). 2. There was no difference In frequency between the right and the left side. 3. Achilles tendon rupture was two times more frequent in indirect cause than direct cause, especially after falling from heights and exercises. 4. The most frequent site of rupture was 2–5 Cm. above the insertion of the tendon (80%). 5. By means of a cost immobilization, good result was obtained in fresh partial rupture of the tendon. 6. Good results were obtained by end-to-end suture in fresh cases and reconstructive surgery in old cases. 7. Most of the patients returned to their jobs about 6 months after the operation.