The contents of Yuk Mee Jee Dae Ron(六微旨大論) are as follows. 1. The Yuk Mee Jee Dae Ron(六微旨大論) is one of the Wun Gi Chil Pean(運氣七篇) which are inserted in So Moon(素問) by Wang Bing(王氷) who compile the So Moon(素問) into 24 volume. Wun Gi Chil Pean(運氣七篇) are Chun Won Ki Dae Ron(天元紀大論), O Woon Heng Dae Ron(五運行大論), Yuk Mee Jee Dae Ron(六微旨大論), Gi kuoo Beun Dae Ron(氣交變大論), O Sang Jeong Dae Ron(五常政大論), Yuk Won Jeong KI Dae Ron(六元正紀大論), Gee Gean Yoo Dae Ron(至眞要大論). 2. It prescribe the Sa Chun(司天) Jae Chun(在泉) Jwa Gan Gi(左間氣) Woo Gan Gi(右間氣). 3. It prescribe the Pheo Gi(標氣) Bon Gi(本氣) Juoog Gi(中氣). 4. It prescribe the Youk BO(六步) and the Sheung Gi(承氣). 5. It prescribe the Hamg Hae Sheung Jae(亢害承制) which is feedback control system between each Yuk Gi(六氣). 6. It prescribe the Sae whae(歲會), the Chun Boo(天符) and the Tae Il Chun Boo(太一天符). 7. It prescribe the active time of Yuk gi(六氣) within a year and Sae gi Whae Dong(歲氣會同). 8. It prescribe the Gi Gieo(氣交) which human beings and all the creation are living on. 9. It prescribe the Bo(步) which are composed of Chun Gi(天氣) and Jee Gi(地氣). 10. It prescribe the Duk(德) Wha(化) Yooung(用) bean(變) which are created by quarrel of Yuk Gi(六氣). 11. It prescribe the outbreak of the Sa Gi(邪氣). 12. It prescribe the Sin Gi(神機) and Gi Rib(氣立). 13. It prescribe all the creations existence are up to the Seoung Gang Chul Ip(升降出入). Like the past, the Yuk Mee Jee Dae Ron(六微旨大論) is include very important concep of the medicine. So the study should be continued with minute attention.