Abstract: Practical teaching plays an irreplaceable role in cultivating students'comprehensive quality, practical operation skills and innovative consciousness. Considering the characteristics of practical teaching and new methods of experimental teaching reform of refrigeration major in Xi'an Jiaotong University, makes a preliminary discussion on the cultivation mode, topic types and teaching methods of open experiment, and analyzes and summarizes the new idea of open experiment topic selection which permeates and integrates engineering design and special topic research. The new curriculum practice teaching mode has been realized, which is centered on students'mastery of knowledge, guided by the principle of teaching quality improvement and guided by the goal of course learning outcomes. It can provide new ideas and references for the practical teaching of energy and power undergraduates.

Key words: Open experiment, Practical teaching, Practice ability, Innovative talents, Refrigeration major, Case analysis