In order to improve the automation level of our country cotton processing and reduce reliance on operators production experience, this paper presented the seed cotton pretreatment of intelligent control strategy based on knowledge base and constructed the related control system. The system can detect the seed cotton characteristic which influenced the quality of seed cotton pretreatment online. Using the method of object oriented, the system represented the knowledge of seed cotton

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... c, device parameter and seed cotton grade standard. All the knowledge were stored into the knowledge base. The inference engine was the core of this system, it was a kind of hybrid inference mechanism based on the instance and the model. Validation test results showed that the system can formulate reasonable seed cotton pretreatment program according to the users requirements and the on line detected results of seed cotton characteristic. The system provided a basis for grading fine processing of cotton.