The general market situation of global Liquefied Natural Gas (LNG) carrier is introduced in handling order situation, delivery situation, and market development trend. The benchmarking analysis of construction cycle of LNG carrier is conducted according to different classes. The analysis of efficient construction technology of LNG carrier is conducted in efficient construction mode, efficient tank section division way, and efficient welding procedure of main screen bulkhead in liquid cargo containment system. The results show that there is certain room for improvement in the key construction cycle of large LNG carriers of shipbuilding enterprises in China, and the efficient construction technology of advanced shipbuilding enterprises in Republic of Korea can be used for reference.