Yin Fu is one of the founders of the Left League, a red agitation poet and one of the five martyrs of the Left League. From 1929 to the eve of sacrifice, Yin Fu was like a burning fire in the face of white terror. With full passion and high-pitched poetry, he wrote revolutionary battle songs such as Farewell to Brothers, Hot Blood, May of 1929 1, Our Poems and We Are Young Bolsheviks. It was praised as "red agitation poem" by later generations. Yin Fu's revolutionary struggle poems are rich in images and strong feelings, without the slogan shortcomings that often appear in his contemporary poets' works, and they are strong in fighting.