Aiming at the integration of multi-source measurement data in waterway engineering,an integrated method based on BIM technology is proposed.Through technical route design and engineering case analysis,the concrete implementation steps of BIM technology in multi-source data integration of waterway engineering are expounded.Taking a waterway regulation engineering in the downstream of the Yangtze river,we probe into the method of multi-source data integration,and conclude that the BIM technique has advantages and can provide reference for the construction of the digital waterway.