Abstract:The purpose and significance of implementing the practice of students self-designed comprehensive field practice is put under examination and three principles in the practice of self design are put forth. The self design process includes: the pre-design preparation, the students/teacher theme-related discussion, the implementation of practical work. From two aspects suggestions were made for the perfection of the teaching pattern: 1. the perfection of students' active learning consciousness; 2. the perfection of the teaching staff, so as to enhance the subjective mobility of the teachers and students and to improve the overall teaching quality