The HPA (High Pressure Absorber) process was studied in detail using three sets of typical high-pressure condensate field gas. The CECUP (Comprehensive Energy Consumption for Unit Production) served as the basis for evaluating energy consumption, and by using ASPEN HYSYS software to simulate and analyze the three HPA processes, and process III was considered better. The method for obtaining the best HPA process under certain conditions was determined by analyzing the operating variables such as inlet split ratio, de-ethanizer pressure and absorber pressure. The adaptability of the HPA process was analyzed using three feed gases with different richness, compared with the DHX process, and obtaining the adaptability range of HPA process to feed gas pressure and richness.