Abstract: The Philosophy of an age will reflect in its society on all sides. During the Southern and Northern Dynasties, a considerable philosophical system of Daoism had been formed. Da Dao Jia Jing Jie constructs an imperfect cosmology with various elements at the very beginning, “Dao” and “Qi” occupy an important position in it. This text indicates the cross generating relation between “Dao” and “Qi”. Thus, Wei-Jin theory can be doubted according to its “Dao” and “Qi” relevance, but unable to demonstrate the Liu-Song theory. Based on logical argument, we can only conclude the written time of Da Dao Jia Ling Jie probably in late Southern and Northern period, not precisely, closing to Liu-Song Dynasty.

Key words: Da Dao Jia Ling Jie（大道家令戒）, Dao-Qi theory（道氣觀）, Written time