Abstract: Aim: to improve diagnosis in limb's injured blood vessels. Method: to analyze the73 cases with injured main arteries of the limbs were treated in the past 14 years. Result: 55 of them suf-fered form cutting or stabbing, and 18 closed injuries. 59 patients had clear - cut diagnosis and 47 weretreated with end - to - end anastomosis or autotransplantation of veins (43 being successful ). There were3 missed diagnosis and 6 amputations. Chnclusion: it is necessary to be highly alert to blood vessel injuriesof the limbs, make timely diagnosis and give prompt treatment. Pules - wave blood oxygen determinationof the injured limbs can be made with a multi - puopse monitor so as to make early diagnosis of arterial in-jury and dynamic observation of the limb's blood supply. The device, accurate diagnosis, is convenientto use. We suggest timely exploration and prompt repair of injured blood vessels.