The effect of lignin fiber on the road performance of OGFC-13 mixture was studied by adding lignin fiber to OGFC-0 mixture with 2.0%, 3.0% and 4.13% performance tests, and the optimal lignin fiber content was sought. The experimental results showed that the optimal oil-stone ratio of OGFC mixture increased more after the addition of lignin fiber, but with the further increase of lignin fiber content, the increase of optimal oil-stone ratio slowed down. Lignin fiber has obvious effects on the Marshall stability, water stability and high temperature stability of OGFC-13, which are improved by 7%, 31% and 86%, respectively. The recommended optimal dosage is 13.0%.