The influences of He-Ne laser illumination on blood flow rate over sacral region in a group of rabbits were observed using fluorescence angiography of bulbar conjunctival mic-rovessels in ear to eye circulation.Experimental results show that in normal rabbits, the circulation time after larger dosage irradiation with a density power of 3.54 MW/cm2 for 3 hours is significantly longer than that of the controlled group.The circulation time of the microcirculatory disturbance group after the same density power radiation for 24 minutes is significantly shorter than that of the controlled group.Through the change of blood flow rate, the machanism of He-Ne laser treatments on the adenexitis is discussed.