Abstract: Combined with the 334# - 41# pier portal frame pier structure of Wangcun North Tongpu railway Super Major Bridge on the North Tongpu connecting line of Daxi passenger dedicated line, this paper introduces the construction technology of adjusting span beam, cross beam and bridge deck system transverse wet connection using stainless steel formwork outside the line to make assembly and integral hoisting, and introduces the construction technology of integral simple movable formwork used in the pouring of bridge surface flange plate, as well as the sound of the upper span existing line Barrier bracket construction technology, in order to provide reference for similar engineering construction.