Liquefied Natural Gas (LNG) , as a kind of green energy, has been accepted and used by all
sectors of the society. In recent years in the Province of Jiangsu, the construction and
renovation of inland water LNG-powered ships have been effectively promoted A LNG storage
tank is one of the important ancillary products, and it is particularly of importance for
safety. The ship’s survey department should strictly carry out product survey in accordance
with relevant national regulations, specifications, and technical standards. In combination
with the experience of surveying 5 m3 marine LNG storage tanks, this study introduces the
characteristics of LNG, the structure of LNG storage tank, and key points for surveying
marine LNG storage tanks.