Water conservancy foundation pit water level monitoring device

The utility model belongs to the technical field of water conservancy surveying equipment, and particularly relates to a water conservancy foundation pit water level monitoring device which comprises a working table, a stand column arranged on the working table, a measuring device connected to the stand column, an installation hole formed in the middle of the working table, and an alarm device arranged at the upper end in the installation hole. A measuring rod is arranged at the bottom of the right-angle connecting device, a baffle is arranged at the bottom of the measuring rod, a floating plate is connected to the measuring rod in a sliding mode, a supporting rod is arranged at the top end of the floating plate, a third conductive plate is arranged at the top end of the supporting rod, and two conductive rods are arranged at the top end of the third conductive plate. A plurality of second connecting plates are obliquely arranged on the left and right sides of the upper end of the measuring rod. The device is