The dam monitoring system includes inclinometer sensors and tilt meter to monitor the dam deformation parameters in real time. The high-precision inclinometer sensor reflects the subtle angular changes of the dam. The tilt meter can monitor the dam body safety related data such as surface displacement and internal displacement of the dam. These monitoring data are transmitted to the dam operation control center. The dam maintenance personnel can make dam safety assessment based on the monitoring data, and truly achieve early warning. All-round contingency measures for dam collapse shall be carried out to ensure the safety of dams and the safety of residents’ lives and property.