Jiang Jin Jiu is a poem written by Li Bai, a great poet in the Tang Dynasty, with the theme of ancient Yuefu, which is famous for its bold style, deep emotion and artistic expression. Yuefu poetry is an important school of ancient poetry in China, which originated in the Han Dynasty. Originally refers to poems collected or created by official music institutions and sung with music. Later, it generally refers to poems based on the old theme of Yuefu or imitating its creative form.