The invention provides a low temperature immersed pump pool for liquefied natural gas (LNG). The low temperature immersed pump pool comprises a main cylinder body used for ensuring liquid seal. The upper end of the main cylinder body is sealed through a flange. An immersed pump is fixed in the main cylinder body. The upper end of the main cylinder body is provided with the flange and an upper seal cover covering the flange. The immersed pump is wrapped with an inner tire. A liquid outlet pipe of the immersed pump penetrates through the flange and the upper seal cover to extend upwards. The side wall of the main cylinder body is provided with a liquid phase inlet and a gas phase outlet. A whole part between the main cylinder body and the inner tire is a vacuum thermal insulation cavity. S304 stainless steel is adopted for the material of the inner tire and a shell of the main cylinder body. The inner tire is wrapped with aluminum foil fiberglass material and contains adsorption purge gas material.