The utility model provides an edible oil storage tank, is including a jar body, and at the internal heating coil that is equipped with of jar, heating coil and the heating medium circulating pipelinewho locates the heating medium circulating pipeline exit tube at top and locate the lower part advance the union coupling, the bottom of the jar body is equipped with anti oxidation unit through the bracing piece, anti oxidation unit adopts seamless steel pipe processing ring shape, forms with outer ring pipe by interior ring canal, interior ring canal is equipped with the high pressure nozzle with outer ring pipe's top, anti oxidation unit and inert gas conveying system are connected, the top of the jar body still is equipped with the respirator. The utility model provides an edible oil storage tank carry out the in -process that heats to the grease, lets in inert gas simultaneously, utilize inert gas isolated with air and edible oil between, prevent because of oxygen in the air and edible oil contact, oxidation under the condition of temperature rising.