Flood prevention early warning device for water conservancy reservoir management

The utility model discloses a flood prevention early warning device for water conservancy reservoir management. The flood prevention early warning device comprises a long vertical cylinder, a cylindrical floating block, a hollow slender rod, an LED display screen, a limiting ring, a fluorescent strip, a light sensation meter counter and a guide ring. The structure is reasonable, the length of the hollow slender rod penetrating through the guide ring can be measured, the length of the hollow slender rod penetrating through the guide ring is the rising height of the water level, the light sensation meter counter is located on the topmost portion of the whole, measurement interference is greatly reduced, a water level sensor is replaced, water level height data can be displayed on an LED display screen, the number font is large, and the measurement accuracy is high. And the remote control switch is arranged, so that the power supply can be turned off in a remote control manner in a non-flood season. 本申请公开了一种水利水库