In recent years, with the increasing appearance of coastal constructions, numerous studies have concentrated on the behavior of sands under dynamic loading. Soil liquefaction is considered a phenomenon that can cause major impacts and damage with a consensus emerging that soils with less than full saturation can undergo liquefaction. Many studies have shown that reducing saturation can minimize the liquefaction potential of soil and therefore, studying the liquefaction phenomenon of unsaturated soil has attracted great attention. How-ever, there remains a need for systematic investigations to gain a deeper under-standing of this phenomenon. In this research, experiments were conducted to examine the mechanical response of sand to cyclic loading and the residual strength following liquefaction under monotonic loading. All samples were pre-pared using the wet tamping method, followed by measurement of the Skempton parameter B to assess saturation levels. Subsequently, sample consolidation and cyclic loading were systematically carried out. The findings indicate a direct correlation between liquefaction susceptibility and sample saturation degree, with emphasis on the relationship between cyclic stress ratio and Skempton’s parameter.