Abstract:Compared to Confucianism and Buddhism,Dao has a more essential,comprehensive and profound meaning.Taoists and Taoism are indespensable from Dao.The name must corresponds to its reality,Dao has been fully developed in the thought and culture of Taoists and Taoism.Therefore,the theory of Dao with Chinese characteristics has been formed.The studying emphasis of Dao' s theory includes mainly the theory of Lao Tse and Chuang Chou,the theory of Huang Lao,the scritures of Taoism and the other related contents etc.