Starting from the target demand for greenhouse gas emissions reduction,the application of ammonia fuel on bulk carriers was studied and explored.From the perspective of overall ship design,extensive and in-depth research,and discussion was conducted on the ammonia fuel upgrade design of bulk carriers through the display and comparative analysis of a large number of research cases,including tank capacity,endurance,fuel tank arrangement,tank type selection,as well as the arrangement design of related systems such as superstructure,stern deck,fuel preparation room,ventilation mast,and refueling station.Further discussions were conducted on the safety issues,risk assessment,and impact on the general performance of ships caused by ammonia fuel,and targeted measures and suggestions were proposed.The research cases and general design ideas presented can provide some inspiration and reference for upgrading the ammonia fuel design for bulk carriers.