The invention relates to the technical field of water conservancy and in particular relates to a
water body information collection device. The
water body information collection device is arranged in water, which is 2m to 10m far away from a
shore, along the embankment according to offshore
underwater topographic features and comprises an
underwater device, a floating body, an above-water device, awater body
information storage, transmission and receiving device, a power supply and a positioning device, wherein the
underwater device comprises an underwater
water flow direction and a flow speedmonitoring device and a
water temperature monitoring device; the above-water device comprises an air speed and air direction monitoring device; a
wave height monitoring device, a
wave frequency monitoring device and
a wave amplitude calculation device are arranged at the bottom of the floating body; the power supply and the
water body information storage, transmission and receiving device are arranged on the floating body; the positioning device is used for fixing the position of the floating body in a water body. The flood-prevention water body information collection device provided by the invention can be used for collecting various water body information needed by
flood prevention and sending the water body information into a
flood prevention command center in real time, so that the
flood prevention command center can accurately grasp flood conditions in time and make scientific flood prevention decisions, and furthermore, the occurrence of dangerous cases is reduced and the life and property of the masses are protected.