In order to develop a controllable low-strength loess-based grout material, loess is used as the primary material with cement and additives as supplements. By employing the controlled variable method and orthogonal experimental design, various samples were prepared with cement content and curing age as variables. The study investigates their impact on the unconfined compressive strength, shear strength, and compression coefficient of loess-based grout materials. Experimental results indicate that within the 4% to 12% cement content range, the relationship between cement content and curing age, and the unconfined compressive strength of loess-based cement grout materials, follows linear and quadratic parabolic patterns, respectively. The research findings have reference significance for the application of loess-based grout materials in embankment slope engineering.