An air conditioning structure for a green house is disclosed. The disclosed air conditioning structure for a greenhouse comprises: a greenhouse outer wall a greenhouse inner wall spaced apart inwardly from the greenhouse outer wall at a predetermined distance to enable subjects to be planted and cultivated inside thereof an air conditioning member disposed in a space between the greenhouse outer wall and the greenhouse inner wall to perform an air conditioning inside the greenhouse inner wall a greenhouse inner duct installed in a longitudinal direction with a predetermined length along the ground inside the greenhouse inner wall to make the air which passed through the air conditioning member flow from the ground inside the greenhouse inner wall to the upper space inside the greenhouse inner wall a sensor member sensing at least one among temperature, humidity, and wind speed at the height corresponding to a growing level of the cultivating subjects planted inside the greenhouse inner wall a hanger member hanging the sensor member a lift member lifting the hanger member up in order to keep the sensor member at the height corresponding to the growing level of the cultivating subjects and a control member operating the lift member in order to keep the sensor member at the height corresponding to the growing level of the cultivating subjects which are sensed by the sensor member. According to the disclosed air conditioning structure for a greenhouse, air conditioning can be performed to be suitable for a growing level of the cultivating subjects inside the greenhouse and air conditioning optimal for the cultivating objects can be performed. An air layer between the greenhouse outer wall and the greenhouse inner wall functions as a buffer layer for changes in an environment outside the greenhouse to minimize an effect of changes in the environment outside the greenhouse on an environment inside the greenhouse and minimize heat emission from the inside to the outside of
