Air conditioners (AC) and heat pumps are preferred items for the energy efficiency (EE) regulations in the world. Hence, harmonization of test standards and EE benchmarks has been the subject of heated discussions of international organizations, and then impacts the international standard revision. In this paper, the test methods of AC in some economies with large market were collected, aggregated and analyzed to clarify the compatibility for our standards with the international ones. Furthermore, compare the differences among countries in order to assess the future step to face the competition in the international AC market liberalization, adjust the direction of test specifications and provide the government with reference to EE management.