Integrated with expansion chamber pressure pulsation attenuator is the development trend of the civil aircraft engine driven pump (EDP) and one of effective measures for restraining EDPs pressure fluctuation. The types of pressure pulsation attenuator were summarized, and the advantages and disadvantages were analyzed by means of comparing between various types of pressure pulsation attenuator. The research methods and current situation at home and abroad of the expansion chamber pressure pulsation attenuator were introduced importantly. Finally, the progress and research hotspots of the expansion chamber pressure pulsation attenuator were analyzed, and the development trends were predicted.