Abstract This paper addresses the strength development of a basalt fiber reinforcedcement-based soil stabilizer.In order to develop eco-friendly high performance stabilizer, cementitious capillary crystalline waterproof material is used as alternative to partially replacesulphate aluminum cement.Driven by the purpose of achieving a high strengthperformancewithout impairing other desirable properties, calcium sulfate, basalt fiber and hydrophilicalumina suspension are selected as additives. By adopting the Response Surface Method,the combinedeffects of the three additives on the unconfined compressive strength of the stabilized soil are analyzed. The basalt fiber can constrain the growth of micro cracks and pores, and thus control their coalescence. Incorporating basalt fiber in combination with calcium sulfate and alumina suspension can not only increasethe strength and hardening of stabilized soil, but also improve other properties, especially for enhancingthe ability of cementing, andfor raising the fracture roughness, and therefore improve the durability.The microstructure changes as a consequence of stabilization process arecharacterized by the scanning electron microscope to analyze the origination of the high strength and durability of stabilized soil.The difference of mineral components between the untreated and stabilized soil samples is identified by the X-ray diffraction analysis.