Abstract: In order to reveal the variation law of the driver's field of view contrast under the tunnel lighting environment and its influence on driving safety, 17 drivers are selected for real vehicle test. Eye movement data of the drivers during driving in the tunnel is recorded with eye trackers, and then the luminance data of the tunnel lighting environment along the line are collected using imaging-type luminance meters. The fixed point fusion analysis of the fixation point image position and the distribution parameters of the lighting environment are performed. Finally, a mathematical model is used to further quantify the relationship between field of view contrast and each eye movement indicator, so as to further understand the influence of changes in driver's field of view contrast on driving safety. The results show that in the entrance and exit section of the tunnel, the contrast of the driver's field of view is relatively high, and its dynamic change is more obvious. The corresponding change rate of the driver's pupil diameter will also be greater, and the glance time will be longer. For most tunnel lighting environments, as the contrast of the field of view increases within a specific interval, the change rate of pupil diameter rises and the glance time is extended.When the contrast of the field of view exceeds a certain value, the change rate of pupil diameter and the glance time decrease on the contrary.