In order to ensure the traffic capacity and durability requirements of bridge, it is only one choice to demolish and rebuild the bridges not conforming to the relative specifications on the basis of hard to reinforce, maintain or widen. In order to give the clear idea for the selection of demolition scheme from the perspective of scientific rationality, the selection model for demolition scheme of concrete beam bridge based on the analytic hierarchy process (AHP) is established. AHP is used to analyze the engineering cases. Each demolition scheme is comprehensively evaluated so as to select the best demolition scheme.