To meet the need of SAR ATR, based on attributed scattering center model, the extracting method of the scattering center feature from SAR imagery is studied. The method first extracts region including only one scattering center from SAR image by segmentation. Then, the type of the scattering center of the region is chosen. Finally, the initialized values of the parameter are selected and digital optimization is executed by the utilization of the corresponding parameter model of the scattering center, and the scattering center of the target in this region is gotten. By following theses steps repeatedly, all scattering centers of the target can be extracted. Results from simulation show that the algorithm has good estimate performance.