Water level monitoring device

The utility model relates to the technical field of river water conservancy, in particular to a water level monitoring device which comprises a base, a mounting rod, an adjusting rod, a locking piece, a connecting rod and a floating monitoring assembly. The monitoring assembly comprises a first rack, a driving gear, a baffle, a monitoring lamp, a transmission component and an alarm component, the first rack is fixedly connected with the connecting rod, the driving gear is rotatably connected with the adjusting rod, the baffle is slidably connected with the adjusting rod, and the monitoring lamp is fixedly connected with the adjusting rod; a first rack drives a driving gear to rotate, the driving gear drives a transmission component to rotate, then a baffle is driven to move, the baffle drives an opening to move, light emitted by a monitoring lamp located at the position of the opening can be seen by a worker, and the worker can monitor the water level by observing the position of the light. Therefore, the pur