The utility model provides a bimetal low temperature film storage tank structure for liquefied natural gas stores, includes: the primary tank of film inner tank, setting up at main outside the container's inferior container, setting up that bear the heat insulation layer and the second bears the heat insulation layer first between primary tank and time container, wherein, the first heat insulation layer that bears is located the annular space that primary tank and inferior container formed, the second bears the bottom that the heat insulation layer is located the primary tank, and the first heat insulation layer that bears the inclosed adiabatic space of heat insulation layer formation with the second, in order to reach the fluid pressure pressure -bearing in time container. The utility model discloses not only can avoid using the high steel sheet of the more complicated cost of production technology, solve the design and use, template shaping, the loaded down with trivial details and longer scheduling problem of cycle of construction of outer jar of prestressed concrete class and prestressing force, satisfy the extra -large -size development trend of liquefied natural gas storage, and the high altitude construction risk has improved the construction security when having reduced outer jar of construction of prestressed concrete.