The invention relates to a straw heat-insulating raw sol brick. The straw heat-insulating raw sol brick comprises a straw insulation layer, a raw soil protective layer and a raw soil keel, wherein the thickness of the straw insulation layer is in a range from 150mm to 700mm, and thicknesses of the raw soil protective layer and the raw soil keel are in a range from 60mm to 80mm. Agricultural waste materials can be used for producing energy-saving building wall materials, the environment pollution is saved, a lot of fertile land clay is saved, the waste is turned into useful things, and a lot of fuel coal is saved. The brick is capable of improving energy-saving capability of buildings greatly, improving the heat insulation effect, insulating sound effectively and saving materials, durable, safe, fire-proof, convenient to construct, quick, high in bricking efficiency, light in weight and low in cost.