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Abstract. With the development of modern agriculture, intelligent agricultural equipment has been used more and more widely with the characteristics of high efficiency, low labor costs, reliable operation and other advantages in agricultural production. The spacing of traditional mechanical sowing machine is controlled by a single source of speed, which is easily to be affected by the working environment. It is difficult to ensure the accuracy of spacing due to mechanical transmission restrictions. It could only achieve a fixed number of plant spacing because the sowing depth could not be control, which leads to sowing and other inconsistencies and other issues. Therefore, this paper developed a intelligent detection and control system for a set of corn seeding machine. The system of corn sowing machine includes the parts of precise control of sowing plants and the real-time control of sowing depth. The part of precise control of the sowing spacing included the module of speed acquisition and sowing motor control. The part of sowing depth Real-time control included the module of collect pressure information and the module of sowing depth adjustment. The results showed that the entire monitoring system was running smoothly, with some features such as a comprehensive detection, precision control, interactive interface, clear display, easy installing. It could be widely used in corn precision planter and intelligent agricultural production.