Atraumatic calcaneal fractures associated with neurological abnormalities have been reported by several authors, and most of them are associated with diabetes. Chronic alcoholism is also a cause of neurological abnormality and neuropathic arthropathies associated with chronic alcoholism were reported. However we could not find any report of atraumatic calcaneal avulsion fracture associated with chronic alcoholism. We have treated a calcaneal avulsion fracture in a chronic alcoholic patient with open reduction and internal fixation, and the result was not satisfactory. We suggest that conservative treatment is better for the atraumatic calcaneal avulsion fracture in a chronic alcoholic patient with severe osteoporosis and neurological abnormalities.