This study investigates the technology of modifying the high-strength aluminum alloy V95 through the use of Al-Sc ligature, aimed at enhancing its mechanical properties, a key focus in the advancement of modern materials. The analysis centers on justifying the selection of scandium as a microalloying element, leveraging its ability to form stable strengthening phases and influence the alloy’s microstructure, alongside the development of heat treatment regimes based on an in-depth analysis of the Al-Sc phase diagram. The outcomes of experimental melts with the addition of 0.2–0.3 wt.% scandium were carefully evaluated, followed by an extensive examination of mechanical properties using the precision TIRAtest300 equipment, which ensured the accuracy of the collected data. The results indicate that scandium modification enhances the homogeneity and fine-grained structure of the alloy, significantly reduces anisotropy in mechanical performance, and markedly improves strength: tensile strength increased by 21.6%, and yield strength by 42.5% compared to the unmodified state. Proposed heat treatment regimes, including homogenization at 470°C for 8 hours to eliminate structural inhomogeneities and aging at 300°C to stimulate the formation of Al₃Sc phases, were identified as critical for maximizing the strengthening effect. Microstructural analysis, conducted with advanced techniques, confirmed a substantial improvement in structural uniformity and a reduction in anisotropy within the modified alloy, a vital factor for its practical implementation. The study offers practical recommendations for adopting scandium modification in aluminum alloys, highlighting the necessity of precise control over heat treatment parameters to achieve desired mechanical characteristics. The findings hold significant potential for application in industries requiring high-strength and lightweight aluminum alloys with enhanced structural properties, particularly in aviation and automotive sectors where material reliability is paramount.