Astragalus polysaccharide is widely used in traditional and modern medicine due to its immunomodulatory, anti-inflammatory, and antioxidant properties. It enhances the body's immune response by stimulating immune cells such as macrophages, T-cells, and natural killer cells, serving as a key component in treatments for immune-related disorders. In oncology, it acts as an adjuvant therapy to boost chemotherapy efficacy and mitigate side effects like immunosuppression and fatigue. It also aids in managing chronic inflammatory conditions, including arthritis and autoimmune diseases. Studies indicate potential in protecting liver cells from toxins, supporting cardiovascular function, and reducing oxidative stress. Beyond medicine, it is used as a feed additive in agriculture to improve livestock immunity and infection resistance. In cosmetics, its antioxidant effects help protect skin from aging and oxidative damage. Ongoing research explores its role in developing pharmaceuticals and health supplements.