We report 6 cases of hyperbaric oxgen therapy for crush wounds. Although it has long been recognized that wounds are hypoxic, the critical role of oxgen in healing has only recently been appreciated. Tissue PO2 level in wound can be raised by inhalation of 100%O2 at 2 A. T. A. and increased tissue PO2 accelerats wounds healing by correcting tissue hypoxia. We think that hyperbaric oxygen therapy is effective as one of the supportable treatment for the crush wounds.