The ¹³C NMR spectra of aconitin)-type diterpanoid alkaloids and derivatives:yunaconitine(8),vilmorrianines A (5), B (karakoline, 8),C (7) and D (9),soopaline(10), 3-acetyl-yunaconitine (4) and 3-acetyl-vilmorrianine A (6) have been determined at 22.63 MHz in the PFT mode. These alkaloids were recently isolated from Aconitum, species used in medicine in Yunnan.The structures of new alkaloids 3, 5, 7, 9 and 10 wore further proved by ¹³C NMR spectra. The chemical shifts due to eaoh carbon atoms in these compounds were assigned with the help of off-resonance decoupling, additive relationship and comparison with similar alkaloids (see Tables 1 and 3).The substituent effects of hydroxyl and acetyl groups in aconitine-type ester alkaloids are analysed (see Tables 4 and 5).