The vertebral column is stabilized by a complex system of spinal ligaments, including the anterior longitudinal ligament (ALL), posterior longitudinal ligament (PLL), ligamentum flavum (LF), interspinous ligament, and supraspinous ligament. These ligaments are histogenetically derived from mesenchymal condensations of the paraxial mesoderm and undergo intricate cellular differentiation processes during embryogenesis. Their development is regulated by mechanical forces, transcription factors such as Pax1, Scx, and Mkx, and molecular signaling pathways including Sonic Hedgehog (Shh), bone morphogenetic proteins, Wnt/β-catenin, and transforming growth factor-β. Each ligament exhibits a unique extracellular matrix composition tailored to its biomechanical role: collagen-rich ligaments like the ALL and PLL provide tensile strength, while elastin-rich structures like the LF support dynamic flexibility and recoil. The spatial and temporal dynamics of ligament formation vary regionally across the spine to meet specific functional demands. Pathological alterations such as ossification, hypertrophy, and degeneration are frequently linked to imbalances in these regulatory networks. Understanding the histogenesis, structural properties, and molecular underpinnings of spinal ligaments provides critical insights into spinal biomechanics and disease. Furthermore, emerging therapeutic strategies, including regenerative medicine, biomimetic scaffolds, and gene editing technologies, offer promising avenues for repairing or restoring ligament function. This chapter integrates histological, developmental, and clinical perspectives to present a comprehensive overview of spinal ligament biology, with implications for diagnosis, treatment, and innovative management of ligament-associated spinal disorders.