Purpose: To investigate the hemodynamics in human extremities Injuried arteries repaired byend-to-end anastomoses, evaluated the anticipation outcome of vascular repair. Methods : A clinicalanalysis was undertaken to evaluate the vessel complicance in repair of the major arteries injury byend-to-end anastomoses. The records of 21 patients with 27 arterial injuries repaired by end-to-endanastomoses were reviewed. Results; All were patent in the early postoperative period. 15 patientswere followed beyond half one year, there is no significant difference between the anastomoses andthe control side(p>0.05). The complicance of the time-group-1 (24 weeks) was lower than0.7 x 103/kpa and that of the time group-2 (>24 weeks) was higher than 0.7 x 103/Kpa, but there wasno significant difference between the different time-groups (24 weeks or >24 weeks) (p>0.05).Thevascular complicance in lower extremities is over that in upper extremities, and there also is nosignificant difference between them (p>0.05). Conelusionf: The complicance was good and accurateindex to evaluate the anticipation outcome of arterial injuries in human extremities repaired byed-to-end anastomoses and should be considered periodical and continuously during arterialreconstructive procedures.