Abstract: A ventilated shoe, injection molding device and method for producing the ventilated shoe are disclosed. In the ventilated shoe, a cushion midsole, which is made of a foam resin material and includes a ventilation means, is interposed between and integrated with the inner and outer soles of the shoe. The above ventilation means is composed of a hemispherical air pump and an L-shaped air hose. The above air pump is installed on the inner sole of the shoe, while the L-shaped air hose is set in the midsole and opens to the atmosphere at the side surface of the midsole. The above ventilation means continuously and effectively ventilates the interior of the shoe, so that the ventilation means forcibly expels the moisturized and contaminated air from the interior of the shoe into the atmosphere while continuously introducing fresh air into the shoe. The above ventilated shoe thus prevents propagation of harmful germs on a wearer's foot and emission of a bad smell.