Friction Stir Additive Manufacturing (FSAM) has emerged as a novel and promising technique for producing components with enhanced mechanical properties. This review explores recent advancements in FSAM, focusing on its potential to address limitations of traditional additive manufacturing methods, such as porosity, residual stress, and anisotropic properties. Key developments in process optimization, tool design, and microstructural refinement are discussed, emphasizing their influence on the mechanical performance and microstructure of manufactured components. Additionally, the integration of advanced control systems, machine learning algorithms, and the use of novel interlayer materials for improved bonding are examined. By highlighting these innovations, this review provides insights into the current challenges and future opportunities in the field of FSAM, contributing to the broader understanding of this emerging technology.