Abstract: Ti-based amorphous alloys exhibit a unique disordered structure, combining high specific strength, excellent corrosion resistance, and distinctive physicochemical characteristics, which endow them with broad application prospects in aerospace, biomedical engineering, and precision manufacturing. However, their limited glass-forming ability and room-temperature brittleness remain the key bottlenecks restricting their engineering applications. This review summarizes the structural characteristics, thermodynamic and kinetic conditions for formation of Ti-based amorphous alloys, and provides a detailed introduction to the principles and applicable scenarios of various preparation methods, including melt spinning, copper mold suction casting, mechanical alloying, and powder metallurgy. On this basis, the effects of structural regulation approaches such as postheating crystallization, electropulsing treatment, and deep cryogenic cycling treatment on the microstructure and mechanical properties are systematically discussed, and the central roles of free volume and shear transformation zones in plastic deformation are elucidated. Furthermore, the corrosion behavior and corrosion resistance mechanism of Ti-based amorphous alloys in acidic and physiological environments are introduced. Finally, focusing on the cuttingedge field of irradiation effects, the critical conditions for irradiationinduced crystallization, the regulation mechanism of irradiation on mechanical properties, and the unique surface morphology evolution behavior are thoroughly analyzed. This review aims to provide a systematic theoretical reference for the composition design, structural regulation, and functional applications of highperformance Tibased amorphous alloys.