道家以老莊為巨擘，然其始則起於西周的史官。本論文縱論道家流變之跡，起於西周，終於魏晉，凡分六期：一、形成期：西周史官的原始道家。二、成熟期：春秋史官老耳冉的思想。三、全盛期：我國下半葉道家的多元發展，可分三派：（一）莊子學派。（二）黃老學派。（三）楊朱學派。四、黃老期：漢初的黃老思想。五、科學期：東漢王充和張衡的道家思想中的科學精神。六、蛻變期：魏晉的道家思想。

　　　　　Lao-Tze and Chuang-Tze were representative figures of Taoism in Pre-Chin period. Theorigin of Taoism could be derived from the historical officials in Western Chou Dynasty. Thepaper allocates the changes of Taoism from Western Chou Dynasty to Wei-Jin period to sixsegments: 1. The formation period: the primodial Taoism of Western Chou Dynasty's hisorical offi cials. 2. The maturity period: the Lao-Tze thoughts in Spring-Autumn periods. 3. The full development period: the period of warring states can be divided as: A. the Chuang-Tze scholar type B. the Huang-Lao scholar type C. the Yang-Chu scholar type 4. The Huang-Lao period: the Huang-Lao thoughts in the beginning time of Han Dynasty. 5. The scientific period: the scientific ideas from Wang-Chung and Chang-Hen. 6. The Changing period: the Taoism in Wei-Jan periods.