The invention discloses an infrared-resistant invisible military first-aid blanket and preparation method for the same. The military first-aid blanket orderly comprises from the interior to the exterior an aluminum-based film, an organic matter bonding layer, an infrared invisible layer and a camouflage coating layer, wherein the infrared invisible layer is bonded on the upper surface of the aluminum-based film via the organic matter bonding layer; the camouflage coating layer covers the upper surface of the infrared invisible layer; and the infrared invisible layer is made from infrared-resistant low-emission material. In the infrared-resistant invisible military first-aid blanket prepared by the method, internal heat can be effectively isolated with the infrared invisible layer made from low infrared emission rate and attached to the inner layer of the camouflage coating layer, so infrared emission rate can be reduced; heat radiation of a military target can be effectively shielded; and infrared invisible effect can be achieved.