The invention belongs to the field of food machinery and especially relates to an automatic rice distribution system for student canteens. According to the automatic rice distribution system for student canteens, by measuring the rice weight with a sensor, accurate rice distribution is realized. The system is characterized in that: the inner of an integral frame 600 is provided with a stirring mechanism 100, a rice filling device 200, three sets of rice leakage devices 300, three sets of rice leakage outlet open-close devices 400, three signal detecting modules 500, and a one-chip microcomputer control system 700 , which are arranged from top to bottom; the stirring mechanism 100 is connected to a power supply, the rice leakage outlet open-close devices 400 and the signal detecting modules 500 are electrically connected to the one-chip microcomputer control system 700; the system is provided with the stirring mechanism and the sensor device; the rice filling device is provided with a rice adding funnel and so on. Automatic rice distribution is realized, the rice is kept friable and the taste is not affected. The system has following advantages: the accuracy of rice distribution is not affected by the rice cooking quality, the interference is low, the weight accuracy of each meal is guaranteed, the rice can be added at any time in the rice filling process, and the whole machine is convenient to clean.