Abstract: In recent years, the construction technology level of China's Construction Engineering and road and bridge engineering has been rapidly improved. In the road and bridge engineering, the application of various advanced mechanical equipment has been increased. The application of mechanical equipment in the road and bridge engineering not only improves the construction efficiency, but also ensures the standardization of the road and bridge engineering construction, providing an important technical guarantee for the road and bridge engineering. However, due to the relatively complex structure of mechanical equipment, poor management will affect the operation state of mechanical equipment, and bring the corresponding security risks to the operation of mechanical equipment. Therefore, while using road and bridge mechanical equipment, we should also do a good job in the management of road and bridge mechanical equipment. Aiming at the hidden dangers in the management of road and bridge mechanical equipment,this paper analyzes the causes of the hidden dangers in detail, and puts forward corresponding solutions to improve the management level of road and bridge mechanical equipment and ensure the good operation of mechanical equipment.