Abstract: A lithium-air battery includes a positive electrode layer, a negative electrode layer, and an electrolyte layer, where the positive electrode layer, the negative electrode layer and the electrolyte layer are accommodated in a receiving space formed by a housing; a side of the housing adjacent to the positive electrode layer and away from the negative electrode layer is provided with a pore absorbing air from outside the housing; the positive electrode layer includes a positive electrode current collector and a reaction layer that is coated or hot-pressed on the positive electrode current collector; the negative electrode layer includes a lithium storage layer having lithium ion intercalation and deintercalation capabilities and a lithium source negative electrode active material layer coated or hot-pressed on a surface of the lithium storage layer, and the electrolyte layer is sandwiched between the reaction layer in the positive electrode layer and the negative electrode layer.