Abstract: In order to improve the production efficiency of the feeding system in animal husbandry feed production, in this study, the feeding system for a mobile pellet feed processing unit produced by an enterprise in Inner Mongolia was improved and optimized. The control technology and sensor technology such as PLC, touch screen and remote communication were introduced into the feeding system of mobile pellet feed processing unit to replace relay control, so as to achieve real-time monitoring of accumulation height of materials in silo, bearing temperature and feed transportation rate. The results showed that the use of laser sensors in the feeding system solved the problem of inaccurate detection of material accumulation height; the problem of material transmission rate was solved by using current transmitter and rotary encoder; the real-time monitoring of the running current of the conveying motor was realized by using the current transmitter; the temperature sensor was used to monitor the running temperature of the bearing in real time; the touch screen and remote monitoring platform were used to realize two real-time monitoring methods（local and remote）. The results indicated that the use of PLC, touch screen, remote monitoring platform and other technologies improved the automatic management level of the feeding system, which made the feeding system more perfect, and could effectively reduce the labor cost, greatly improve the production efficiency of the mobile pellet feed processing unit and reduce the personal risk of the staff.