Float type hydrology and water level observation device

The invention is applicable to the technical field of hydrological survey, and provides a float-type hydrological water level observation device which comprises a buoyancy table, the periphery of the buoyancy table is designed to be of an inwards-sunken cambered surface structure, inclined chamfers are arranged on the upper portion and the lower portion of the periphery of the buoyancy table, and a mounting hole is formed in the center of the buoyancy table. A mounting hole is formed in the bottom of the buoyancy table, a center cylinder is fixedly mounted on the inner wall of the mounting hole, a hydrology and water level observation assembly is arranged on the center cylinder, a cross plate frame is fixedly mounted on the circumferential outer wall, close to the bottom of the buoyancy table, of the center cylinder, supporting rings are fixed to the four ends of the cross plate frame, and floating assemblies are arranged on the inner walls of the supporting rings. The hydrological water level observation dev