The invention discloses a material throwing device for pond culture. The material throwing device comprises floating balls, a bracket, a fixed plate, a tube, a material throwing tray, a guide housing, bolts, a high-speed motor, a temperature sensor, a camera, a water quality detector, a rotating shaft, a blade, fixing rods, processors and controllers, wherein the bracket is arranged at the upper parts of the floating balls, and the other end of the bracket is connected with the fixed plate; the fixed plate is provided with the fixing rods, the fixing rods are connected with the high-speed motor by the bolts, and an output shaft of the high-speed motor is connected with the rotating shaft; the tube sleeves the outer side of the rotating shaft; the guide housing is arranged at one side of the tube; the blade is arranged at a connecting part of the guide housing and the tube; a circular hole through which the rotating shaft can pass is formed in the middle of the blade; the material throwing tray is arranged at the upper part of the tube. The material throwing device enables throwing to be uniform by mechanical material throwing, thus saving manpower; furthermore, the material throwing device has functions of water quality monitoring and the like, thus realizing the automation and intellectualization of the pond culture, and meeting the demands of the pond culture.