Abstract: As the constant speed heat pump air-conditioning heating in high temperature environment, the system often overloads and the stability of the compressor is poor. To deal with this issue, a deep analysis has been made and a solution based on high temperature operation control technology has been put forward. Finally, the experimental results demonstrate the effective and superiority of the high temperature operation control technology.

Key words: The constant speed heat pump air-conditioning, High temperature operation control technology, The stability of the compressor