This paper introduces the innovative technology of continuous box girder bridge with corrugated steel web PC with span of 40 m ~ 60 m, which is formed by prefabricated corrugated steel web PC I-beams. The cross section of the corrugated steel web PC continuous box girder is first "broken into pieces" into two corrugated steel web PC I-beam units, and then the prefabricated pair-two I-beam units are connected through transverse wet joints. Formed PC continuous box girder with corrugated steel web.