Cryogenic liquefied natural gas storage tank is a kind of equipment used to store and transport liquefied natural gas, which has the characteristics of high efficiency, safety and energy saving. The cryogenic liquefied natural gas storage tank is made of two layers of stainless steel inside and outside, and a vacuum insulation layer is filled in the middle, which can effectively reduce heat loss and evaporation. The volume of cryogenic liquefied natural gas storage tanks is generally between 3 cubic meters and 200 cubic meters, which can be customized according to the needs of users. The working pressure of cryogenic liquefied natural gas storage tanks is generally between 0.2 MPa and 3.2 MPa, which can be adjusted according to different usage occasions. The operating temperature of cryogenic LNG storage tanks is generally between -196 degrees Celsius and -160 degrees Celsius, which can ensure the stability and purity of liquefied natural gas.