The typical summer and winter performances of gshp system are analyzed by the exergy analysis method . and some conclusions about 3 refrigerants selection for gshp and the determination of evaporating temperature and condensing temperature are made . it is useful for optimization of the gshp system performance 对热泵系统冬夏典型工况利用(火用)分析,得出地源热泵机组制冷剂选择、冷凝温度和蒸发温度的确定、系统优化以及参数匹配等方面的基础数据。