In order to improve modern management level of the sow breeding and carry out the aquaculture automatic control and management,it designed a intelligent sow feeding system based on expert system,the system put the AT89S52MCU as the core and adopt some technology about radio frequency technology,information collection,bus topology technology,expert system.This paper introduces the principle of each subsystem and expert system about the way of establishment of a knowledge base,the principle of reasoning machine,the design of control algorithm.After the commissioning,test results meet the project...