When we study the famous poet of yi people, scholar Luo Qing-chun＇ s poetics, we can not avoid to study and analyse his poem＇ s critical methods. While Luo Qing-chun studied the poem＇ s creation and development of minority nationality, he not only applied some traditional literature critical methods, such as social history criticism, aesthetic critticism, and some modern critical methods, such as psychology criticism, original criticism as well. These criticisms provid the powerful support to it＇ s creation of mature poetics system.