The purpose understands the chemical part of place of wood of heart of Yunnan ormosia fir further. The alcohol of wood of heart of fir of methodological Yunnan ormosia extracts content, via using post of extractive, silica gel the method such as color atlas, gel column color atlas departs, from its appraisal of depart of chloroform extraction place gets 18 compound, use spectrum analytic (the method such as UV, IR, ESI-MS, 1H-NMR, 13C-NMR) determines its structure. As a result these 18 compound are 12 yew alkyl respectively: 2α , 5 α , 7 β , 9 α , 10 β , 13 α - 6 acetyl oxygen base - 4(20) , 11- yew 2 Xi (Ⅰ ) , yew element (Ⅱ ) , yew - 4(20) , 2 Xi of 11- - 2 α , 5 α , 10 β - 3 acetyl oxygen base - 14 β , 2- methylic butyl (Ⅲ ) , 10 β - hydroxyl - 2 α , 5 α , 14 β - 3 acetyl oxygen base - 4(20) , 11- yew 2 Xi (Ⅳ ) , 1- goes hydroxyl Ba Kating Ⅳ (Ⅴ ) , Ba Kating Ⅳ (Ⅵ ) , Ba Kating Ⅵ (Ⅶ ) , 7, 9- goes acetyl radical Ba Kating Ⅵ (Ⅶ ) , 10- goes element of fir of acetyl radical Yunnan ormosia (Ⅺ ) , 1 β - acetyl oxygen - 5- goes acetyl radical Ba Kating Ⅰ (Ⅹ ) , Ba Kating: Ⅲ of Ⅹ of? of of children’s hair of moisture in the soil of end of Huang of fragrance Shi) , α - Conidendrin(Ⅹ Ⅳ ) , element of different yew fat (Ⅹ Ⅴ ) , deciduous leaf turpentine is mellow (Ⅹ Ⅵ ) ;2 other compound: < ability drinks? Ⅹ Ⅶ ) , β - cereal steriod is mellow (Ⅹ Ⅷ ) . Among them the composition that Ⅵ of compound Ⅰ , Ⅴ , Ⅵ , Ⅺ , Ⅻ , Ⅹ shares first for heart wood place. The chemical composition of place of wood of heart of fir of conclusion Yunnan ormosia is the same as Yunnan ormosia fir other position has certain difference, but with respect to ormosia fir is belonged to and character does not have what difference.