Abstract: Automatic Control Principle is a required course for major of electrical engineering and automation, agricultural electrification in Shanxi Agricultural University, which lays basic knowledge of control theory for subsequent professional courses．Aiming at deficiencies in teaching of Automatic Control Principle course in agricultural colleges, guided by multi-specialty, creativity and practice requirements of talent training under background of new engineering, syllabus has been revised and a series of teaching reforms have been carried out on teaching content, teaching method and practical teaching mode of the course, which has achieved some results．It has certain reference significance for teaching reform of Automatic Control Principle course in sister colleges and universities．