Pasting steel plate is a common reinforcement method in bridge reinforcement. Taking the pasting steel plate on the beam of Fuding Shanqian Bridge as an example, the paper introduces the construction technology of pasting steel plate on the bottom of the beam of Fuding Shanqian Bridge - pouring method pasting large area steel plate technology, which effectively avoids the problem of too many construction personnel and material waste in conventional construction methods, and at the same time ensures the quality of pasting steel plate on the bottom of the beam.