The effect of lon- term skid resistance performance of asphalt mixtures was studied in this paper. To achieve this objective, three GAC 13C asphalt mixtures including diabase, basalt, and limestone were studied using the model mobile load simulator equipment（MMLS3）. Then, grey relational analysis between aggregate characteristics and the longterm skidresistance performance was conducted. After that, a long-term skid-resistance performance prediction model based on aggregate characteristics was developed. The test results show that with the increase of loading repetitions, the skidresistance of GAC13C descended. After a certain amount of loading repetitions, the skidresistance became stable. A high positive correlation was found between the polished value and the initial value and final value of longterm skid-resistance indexes. The crush value has a significant impact on the attenuation rate.