Shooting the simulayory media or dog with 7.62 mm or 5.56 mm M 193 bullets,the instantaneous deformation and displacement of the blood vessels, and the gradient attenuation of the pressures inside tubes of different diameters were observed by means of high speed photography,instantaneous pressure measurement and pathomorphological examination,which prove that the blood flow disturbance do exist at the time of wounding,and that,in view of the pathological characteristics,there is a definite relationship between the distant organ injuries and the radical blood flow disturbance.