本文从探索古琴曲多声形态入手，对古琴曲欢体的结构形态、音响特征、和声内涵及表现作用进行了比较系统和深入的分析、研究。并将古代琴曲的绿体归为五个类型，即；和音衬托型织体；固定低音型织体；琶音衬托型织体；固定琶音型织体；时比型复调织体。此项研究在我国古代琴曲多声研究方面尚属首次。 This article starts with the exploration of the polyphonic forms of Guqin, and makes a systematic and in-depth analysis and research on the structure, sound characteristics, harmony connotation and performance of Guqin. And the ancient Chinese melodies are grouped into five types of green body, that is, harmony-boring type of texture; fixed bass-type texture; Arpeggio set off type of fabric; fixed Arpeggio type of fabric; This study is the first in the study of polyphonic sound in ancient Chinese music.