In order to study the effects of different lithologic aggregates on the interaction between aggregate-asphalt micro interface, the researchers conducted microscopic tests to analyze the aggregates' chemical composition, micromorphology, and micro roughness. Metal plates were also used as a control group for comparison. In addition, the researchers used a contact angle measuring instrument to investigate the coating effect of asphalt and aggregate at high and medium temperatures. The mechanical properties of the aggregate-asphalt-aggregate system under various adhesion conditions were comprehensively explored through dynamic shear rheology tests and direct tensile tests of the aggregate-asphalt interlayer. The results showed that the microscopic coating effect of asphalt and aggregate and the micro-roughness of the aggregate had a nuanced relationship. The basalt-asphalt interface was found to have good high-temperature properties, while the limestone-asphalt interface demonstrated optimal medium-temperature properties. Lastly, the granite-asphalt interface was found to have the best low-temperature crack resistance.