The invention discloses a bridge construction method. The bridge construction method comprises steps as follows: concrete foundations are constructed on foundations at two ends of a bridge respectively; prefabricated mounting seats are embedded in the concrete foundations; two ends of a beam-column type support are fixed on the two mounting seats through welding, a bridge superstructure is formed through binding, and a mold of the bridge is mounted and fixed on the bridge superstructure and formed through high-strength concrete pouring; a concrete slide is poured on the beam-column type support and transversely extends to communicate with pouring positions of all transversely adjacent bridge sections, and a pouring trolley is placed in the concrete slide; mixing of a concrete pouring material is finished, bridge pouring is performed, and the concrete pouring material and the beam-column type support are poured together; a support lowering device is dismounted after setting of concrete. With the adoption of the method, the construction efficiency is improved, the self-made high-strength, anti-crack and anti-permeability concrete is adopted, so that the firmness, stability and corrosion resistance of a bridge body are greatly improved, and the service life of the bridge body is prolonged.