Ship owners, gas suppliers and shipbuilders are now actively negotiating on the construction and purchase ofLNG carriers capable of sailing in ice-bound seaways. The LNG carriers built to sail in the low-temperature icebound seas of cold districts require special engineering for their structures, main engines, propellers and shafts, andoutfittings. Mitsubishi Heavy Industries, Ltd. (MHI) has established reasonable designs and specifications foractual shipbuilding through projects for cold districts. This paper introduces the main points of the characteristicdesign. We have also studied specifications, materials, and issues such as plant selection in anticipation of buildingships to sail through even lower-temperature environments in the future. From now we will press ahead in ourprojects for cold districts by capitalizing on the experiences and findings we have garnered so far.