Abstract: This paper studied the lime-fly ash bound macadam mixed with 20∶80 proportions of lime fly-ash and aggregates which is often used in construction projects,analyzed the impacts of the fine aggregate content to the unconfined compressive strength,modulus of compressive resilience and dry shrinkage property with various lime content and is showed that lime-fly ash bound macadam reached the desirable strength property and had good effect on avoiding shrinkage when the fine aggregate of 2.36 mm or under made up about 10% of the material.Therefore,it is concluded that lime-fly ash bound macadam with desirable property,replacing fine aggregates is achievable,and at the same time,resistance to water erosion is improved effectively.