The invention relates to the field of water intake engineering equipment and in particular relates to a water intake buoy. The water intake buoy comprises an upper buoy body, a lower buoy barrel body and a water pipe for communicating the buoy body and the buoy barrel body, wherein a heating ring is arranged at the upper part of the wall of the buoy barrel body for achieving a deicing function in an ice layer water area; through holes are formed at the lower part of the barrel wall and the barrel bottom, a water pump connected with the water pipe is arranged in the buoy barrel body for achieving automatic water intake function; a heat preservation layer sleeve sleeves outside the buoy barrel body, and the energy consumption is reduced; a storage battery, a motor and a control device are also arranged in the buoy body, a heating ring and a sensor are arranged on the water pump, the control device is connected with the storage battery, the heating ring, the motor and the water pump respectively for controlling the deicing and layering type water intake operations; a solar panel is also arranged at the top of the buoy body for supplying power to the storage battery; the water intake buoy has simple and high-efficiency water intake design, can realize deicing and layering type water intake, has high efficiency, is energy-saving and environmentally friendly, and has good operability and high controllability.