Motor protection system for rice mill and rice mill

The invention discloses a motor protection system for a rice mill. The motor protection system comprises a controller, a first flow detection sensor for detecting the feeding amount of a feeding port of the rice mill and a second flow detection sensor for detecting the discharging amount of a discharging port of the rice mill. A lifting feeder for supplying materials to the rice husking machine is connected to the rice husking machine feeding port, the lifting feeder comprises a lifting motor, and the rice husking machine comprises a rice husking motor; after the rice milling machine is started, the feeding flow obtained on the first flow sensor is larger than an initial value and larger than a discharging flow value obtained on the second flow sensor, and when the discharging flow value obtained on the second flow sensor is smaller than a set value, the controller controls the rice milling motor and the lifting motor to stop working; according to the motor protection system, the problem that in the prior art