Abstract: The Thought of Taoism in Pre Qin Dyansty is extensive and profound and consists of the harmonious ecological aesthetics which is on the theoretical basis of the Taoist study and the highest category of the Taoism philosophy.The essential feature of Taoism is harmony.The harmonious thought contains the natural beauty of "The unity of heaven and humanity,the imitation of the nature",the social harmony of "natural doing nothing",the humanity's harmony of "reversion of the nature" and the harmony of...