The 7th International Conference on Compressor and Refrigeration (ICCR) is a series of conference, originating from the International Compressor Technique Conference (ICTC). The first International Compressor Technique Conference was held in Xi’an, 1993. Since then, six ICCRs have been held in China. This conference is an important academic conference in the field of compressors and refrigerating technology, offering attendees an opportunity to discuss the current technique, information and products. Its field includes the technique of positive displacement compressor and centrifugal compressor (design, system analysis, modeling, control and operation), and the technique concerning refrigeration, HVAC and cryogenics. The 7th International Conference on Compressor and Refrigeration (ICCR) will be held in Xi’an Jiaotong University, Xi’an, P.R. China, October 16-18, 2015.