Liquefied Stabilized Soil (LSS), a cement-stabilized soil pre-mixed in Japan, is a common application for excavated soil. This study examined the LSS behavior under cyclic loading using Consolidated-Undrained triaxial cyclic testing with cyclic deviator stress of amplitude variation on 10 kg/m3 fiber content cured 28 days outdoor. Following test results, both indoor and outdoor curing do not cause liquefaction. The existence of a critical stress level in cases of outdoor curing between 0.6 and 0.72 of stress ratio SR, which is higher compared to indoor curing. The results also conclude that at low cycle stress levels, LSS cured outdoor exhibits improved elasticity, while at high stress levels, strain softening increases. This is due to outdoor cement-hydration. In addition, LSS cured outdoor under high cyclic stress has higher stiffness degradation, strain energy dissipation, and inelasticity accumulation than indoor LSS.