Abstract: Art song is a common unique, ancient and elegant form of music in our life. Based on the development of art songs in China, this paper analyzes the development and current situation of piano accompaniment of Chinese art songs in the 20th century, and summarizes and refines some outstanding musicians and other subjects in music history, culture and social life. In this paper, from the 20th century Chinese art songs mode style characteristic, analyzes the art song and piano accompaniment characteristics in this period, the application in the concrete practice teaching innovation, as well as the art song piano accompaniment to how to better strengthen the students' practice teaching accompaniment skills and cultivating students'understanding of art song, independent innovation thinking ability.

Key words: In 20th century, Chinese art songs, Piano accompaniment, Historical development, Practice teaching, Innovative applications