Lieh-Tzu has been studied for a long time ever since it was written in the Wei-Chin era. In fact, the backgrounds of the figures and sentences in the book were almost before Han Dynasty. From Lieh-Tsu I carry on researches into the sources of Lieh's thought. The main subject of the book is the study of Chi (氣), self-appearing (自生), self-change (自化), and the topic of fate (命運). The conclusion of the book Lieh-Tzu was condensed from Huang-Lao thought (黃老思想) in Han Dynasty