Power battery status estimation is one of key technologies in modern energy vehicles. From the perspective of modeling approach, this paper classifies three battery status prediction methods, modelling by mechanism, experimental modelling and hybrid modelling. Associating typical model analysis of each method’s feature and development tendency, and aiming at the discrepant status of battery home and abroad, this paper points out, the self-adaption online hybrid model research on discrepant battery pack is the tendency of battery management in new-energy vehicles, which could be theory guide and reference for predication technology in future.