Building information modeling（BIM）and Internet of Things（IoT）technologies are more and more widely used in the infrastructure construction industry in recent years. However，they are not commonly applied in waterway engineering surveys. In view of the current situation，this paper studies the integrated application of BIM and IoT and explores their application in the safety management and control of waterway engineering surveys with the technical architecture and technical route of a survey management and control platform based on BIM and IoT. Taking a waterway project as an example，the paper realizes some applications for safety management and control of water survey operations with the help of the BIM+IoT platform，such as water mobile inspection，safety data management，and remote safety management and control. Practice has proved that the comprehensive utilization of BIM and IoT in the safety management and control of channel surveys has many advantages，such as the quality improvement of information service and the ability enhancement of early warning.