Abstract: Five Folk Songs of Yunnan Province is one of the most significant piano pieces since China's reform and opening up. Given that the piano composition has been gloomy for more than ten years,piano pieces which are ethical and innovative in both content and form are extremely needed. Among them, Five Folk Songs of Yunnan Province is counted as one of the master works due to its extensive collection of classic and traditional folk songs of Yunnan minorities and its superb piano performance with original content and innovative forms of art representation.

Key words: piano piece, skills of composition, Guo Zhihong, Five Folk Songs of Yunnan Province, ontology research