A ventilation sole for footwear, the sole comprising: a communicating vent-hole through which the inside and outside of footwear communicate with each other to allow air to flow; and a valve selectively opening and closing the communicating vent-hole, wherein the valve includes: a housing module inserted in the communicating vent-hole and configured to have opposite ends being open such that a channel is provided therein to communicate with the communicating vent-hole; an open-close module inserted in the housing module, configured with a first closing surface closing the channel, and with a first through-hole at the first closing surface to communicate with at least a part of the channel; and a rotation module provided inside the housing module while coming into contact with the first closing surface of the open-close module, configured with a second closing surface closing the channel, and with a second through-hole at the second closing surface to communicate with at least a part of the channel characterized in that the second through-hole is provided at a position to correspond to the first through-hole, and the rotation module is rotatable to move a position of the second through-hole out of and into the position corresponding to the first through-hole. a communicating vent-hole through which the inside and outside of footwear communicate with each other to allow air to flow; and a valve selectively opening and closing the communicating vent-hole, wherein the valve includes: a housing module inserted in the communicating vent-hole and configured to have opposite ends being open such that a channel is provided therein to communicate with the communicating vent-hole; an open-close module inserted in the housing module, configured with a first closing surface closing the channel, and with a first through-hole at the first closing surface to communicate with at least a part of the channel; and a rotation module provided inside the housing module while coming into contact with the first closing surface of the open-close module, configured with a second closing surface closing the channel, and with a second through-hole at the second closing surface to communicate with at least a part of the channel characterized in that the second through-hole is provided at a position to correspond to the first through-hole, and the rotation module is rotatable to move a position of the second through-hole out of and into the position corresponding to the first through-hole. a housing module inserted in the communicating vent-hole and configured to have opposite ends being open such that a channel is provided therein to communicate with the communicating vent-hole; an open-close module inserted in the housing module, configured with a first closing surface closing the channel, and with a first through-hole at the first closing surface to communicate with at least a part of the channel; and a rotation module provided inside the housing module while coming into contact with the first closing surface of the open-close module, configured with a second closing surface closing the channel, and with a second through-hole at the second closing surface to communicate with at least a part of the channel characterized in that the second through-hole is provided at a position to correspond to the first through-hole, and the rotation module is rotatable to move a position of the second through-hole out of and into the position corresponding to the first through-hole.