Maritime transportation performs an important and prominent role in economic field. It is considered an important activity through its contribution to providing transportation services for the import and export of various types of homogeneous and heterogeneous goods using a variety of marine transport means. This study has built a mathematical model for the modified multi-objective three-dimensional maritime transport problem, which took into account some of the indicators and variables of maritime transport for transporting heterogeneous goods and solving the model by using the modified heuristic and classical methods. The difficulties facing the maritime transport process, due to reliance on classical transportation models, when transporting goods from their sources to the requesting destinations, which in turn differ greatly from the models of maritime transport, called us to address such a problem.