Mitsubishi Logisnext Co., Ltd. (ML) has contributed to the operational efficiency of many container terminals by providing them with container handling equipment and an information management system TOS. On the other hand, the development of a means to solve the shortage of labor due to the decrease in the number of port workers caused by the declining birthrate and aging population, and the increase in the volume of export/import containers handled due to globalization has recently become an issue. This time, Digital Innovation Headquarters of Mitsubishi Heavy Industries, Ltd. and ML have jointly developed a unique technology to automatically establish plans for ship cargo handling operations in a short time which are comparable to those established by experienced workers, by utilizing operations research. This report outlines the technology, describes our unique technology used therefor, and explains its evaluation results.