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The global operational ocean forecasting system is a comprehensive application with numerical ocean models as the key， ocean observation as the basis， and supercomputer comprehensive application capabilities as the tool， providing a full range of forecast services for ocean disaster reduction and prevention， navigation safety， ecosystem protection， search and rescue， etc. It briefly introduces the countries/organizations implementing marine operational forecasting services and their atmospheric forecasting systems. Sea surface winds are the source of driving waves； therefore， wave forecasting is generally carried out in conjunction with the atmosphere. The parameter configurations of the global ocean wave forecasting system were constructed based on WW3 （WAVEWATCH III^?） and WAM （Wave Model） numerical ocean wave models. It focuses on the composition and parameter configurations of the global ocean circulation forecasting system based on HYCOM （HYbrid Coordinate Ocean Model）， NEMO （Nucleus for European Modelling of the Ocean）， and MOM（Modular Ocean Model）. An overview of the operational sea ice forecasting system based on the CICE（Community Ice CodE） and LIM sea ice models coupled with the ocean circulation forecast system is provided. Finally， the conclusions and development directions of the global operational ocean forecasting system are summarized.