Abstract: In this paper, a a tool based on CODESYS platform is developed, which not only assists in precise assembly of angle sensor and calibration of neutral position on the production line, but also flexibly and intelligently adjusts the speed, operation fertilization amount, seeding amount, etc.In the field it is used to improve the reliability of the product and enhance the user’s operating experience.The system developed in this paper mainly calibrates electric rods, angle sensors, left/right speed sensors, fertilization motors, etc.It has been delivered to users for practical use on production lines and fields.After testing with portable and intelligent calibration functions, it has not only verified the improvement of the system reliability of key components, but also verified the functionality of the tool system developed in this paper.