The seismic performance of tall-pier and long-span continuous rigid-framed bridge is studied by using the genreal analysis model with multi-plastic hinges,and compared with the similar continuous beam bridge.It is founded that the continuous rigid-framed bridge only suffers damage slightly in strong ground motions,and the earthquake resistant capability of this bridge is obviously more excellent than that of the continuous beam bridge.Compared with the elastic seismic response,seismic force at the base pier is significantly reduced when plastic hinges are formed in major pier.In addition,the seismic force is greatly reduced along with intensity of ground motion increasing,but increase of displacement at the pier top is not evident.