The invention discloses a granule curing agent and a high-strength low-shrinkage cracking-resistance road surface base layer material prepared using the same. The curing agent is a powder reagent which is prepared by taking low Ca micro-expansive cement, an alkaline catalyst, waste steel slags, high Ca powder coal ash, an expanding agent, an internal curing agent and composite fibers. The curing agent aims at solving the difficult problem of insufficient stable soil material mechanical performance and durability when curing soil exceeds a normal particular dimension; the high-strength low-shrinkage cracking-resistance road surface base layer material prepared using the granule curing agent has the advantages of excellent mechanical performance, stable water resistance and cracking resistance, durability and excellent energy-saving environmental-friendly characteristics, the cost of an engineering project can be effectively reduced, the material can be generally applied to the fields ofroad base layers, soft base treatment, ecological slope protection, dam anti-seepage walls, filling materials, building foundation treatment and the like, and the material has wide application prospects.