Abstract: The influence of target glint on the miss of the homing guidance system is analyzed.Since the target glint is essentially a very low frequency phenomenon whose bandwidth is typically equal to or less than that of the system,it is difficult for a missile to filter it out,or will cause the miss to increase.Expression of the non-dimensional miss distance is deduced using the transfer function method.A conclusion can be drawn that the miss distance has nothing to do with the closing velocity,being proportional to the square root of the noise spectrum density and that of the bandwidth of the dominant lag.Simulation showed that in homing systems the r.m.s.miss was higher than the r.m.s.value of the glint itself.Finally the influence of facula dithering on the guidance precision is estimated using the influence factor for some of aircraft weapons.