Abstract:Sea buckthorn leaves represent abundant resources with broad development prospects. In recent years, significant progress has been made in the study of bioactive components and physiological effects of sea buckthorn leaves. The leaves of Sea buckthorn contain rich flavonoids, polysaccharides, polyphenols, terpenoids and other substances, which have the functions of anti-inflammatory, antioxidant, blood glucose/lipid regulation, hepatoprotective effects, and so on. This review comprehensively outlines the bioactive constituents and their physiological functions in sea buckthorn leaves, summarizes current applications and development status, and prospects future research directions. The work provides a theoretical reference for deep processing and efficient utilization of sea buckthorn leaf resources.