“清”是我国古典美学中的一个核心范畴,本义是指水清,之后其含义逐渐复杂、丰富,逐渐体现在哲学、人、美学三方面。“清”含义发生变化主要是受到了自然因素和人文因素的影响,其中人文因素主要表现在道家、儒家、佛禅三方面。笔者首先论述“清”的含义,并进一步论述“清”与儒家思想、道家思想及佛禅思想的关系,以期为理解“清”含义的丰富性及其原因提供参考。 “Qing ” is a core category in classical aesthetics of our country. The original meaning means clear water, after which its meaning is gradually complicated and rich, which is gradually reflected in philosophy, human and aesthetics. “Clear ” meaning changes are mainly affected by natural and human factors, of which human factors mainly in Taoism, Confucianism, Buddhism and Zen. The author first discusses the meaning of “Qing” and further discusses the relationship between “Qing” and Confucianism, Taoism and Buddhism, in order to provide a reference for understanding the richness of “Qing” meaning and its causes.