A greenhouse framework (22) is assembled out of a framework material (24) such as typical pipes and the like, and the outer periphery of the greenhouse framework (22) is covered by a sheet outer surface member (30) formed from a plastic sheet; a sheet inner surface member (32) is formed on the inner side of the greenhouse framework (22) in a manner of being spaced by intervals to a certain extent from the sheet outer surface member (30) by using a heat shield sheet such that all of a floor surface (32a), a wall surface (32b), and a ceiling surface (32c) are substantially in a sealed state; and an air conditioning device (40) is installed. Thus, a desirable thermal insulation property is achieved between the inside of the greenhouse and the outside of the greenhouse, and air conditioning can be implemented with high energy efficiency. In other words, a greenhouse for plant cultivation that has a simple configuration and can be air conditioned with high energy efficiency can be provided.