Taking a road-rail same-story bridge as the background,this paper carries out the optical simulation analysis based on DIALux by making the threshold increment of road disability glare as the glare evaluation index,then the anti-glare research on the anti-glare facilities is operated combined with field tests.Furthermore,parameter analysis is done to research the influence factors of anti-glare effect through barrier's structural design and train front light.Results show that the barrier height and shielding angle need to be greater than a certain threshold in order to meet the anti-glare requirements,in this case,they are 3.0 m and 12°.When the aperture ratio of the barrier increases or the beam angle and luminous flux of the luminaire are larger,the glare indicator needs to be further calibrated to avoid serious light leakage.The beam angle of the luminaire and the type of barrier material have essentially no effect on the level of glare.Main factors influencing glare level are barrier height、shielding angle and train front light's luminous flux.