As for continuous concrete beams strengthened with fiber reinforced polymer (FRP), the ductility coefficient index was used to study its moment redistribution ability and meanwhile a numerical analysis method was adopted to fit the moment redistribution coefficient. It is found that the energy ratio calculated by using the energy method is considered with the actual moment redistribution capacity of continuous concrete beams strengthened with FRP and the flexural rigidity model can be used to analyze the evolution process of the moment redistribution coefficient of T-section continuous concrete beams strengthened with FRP.