Abstract: The carbon-13 spin-lattice relaxation times and nuclear overhauser enhancement factors (NOE) fora series of 1, 2-polybutadienes with different configurations of 1,2-units in solution of CDCl₃ are determined on 200 MHz pulse FT-NMR Spectrometer. Different kinds of model in interpreting the carbon-13 NMR relaxation data including the Cole-Cole, Fuoss-kirkwood distribution mobel of correlation times, the configurational jump model proposed by valeur et. al. and damped orientational diffusion model of polymer local main-chain motion proposed by Skolnick and Yaris were computer simulated. The stereochcmical dependence of carbon-13 NMR relaxation in 1, 2-polybutadienes is investigated.