The paper comprehensively analyed chest yang obstruction is the the major cause of chest pain, and weak yang and strong yin is the key pathogenesis of chest pain combined with the experience of ancient and modern literature. Through the ancient books textual research on the effectiveness of allium macrostemon in the prevention and treatment of chest pain syndrome, the clinical effect of allium macrostemon in the prevention and treatment of chest pain syndrome, modern pharmacological effects and the prevention and treatment of cardiovascular disease were discussed. It pointed out that the alliu...