PROBLEM TO BE SOLVED: To provide an agricultural greenhouse capable of achieving high energy efficiency without being bound to existing concept of a conventional agricultural greenhouse.SOLUTION: An agricultural greenhouse 1 comprises a foundation 10 and a building body 30 provided on the foundation 10, has a cultivation space 2 inside the agricultural greenhouse, and is built on a farmland 5. In the agricultural greenhouse 1: the foundation 10 comprises a heat-insulating layer 23 which surrounds the cultivation space 2, and a part of a lower area of which is buried underground the farmland 5； the building body 30 comprises an external wall 35 which is connected on the foundation 10 and partitioned from cultivation space by a heat-insulating layer 33 and a roof 40 which covers the cultivation space 2 surrounded by the external wall 35 from above； and a main light collecting region of sunlight is limited to the roof 40.SELECTED DRAWING: Figure 2【課題】これまでの農業用ハウスの既成概念にとらわれることなく、高いエネルギ効率を達成できる農業用ハウスを提供する。【解決手段】基礎１０と、基礎１０の上に設けられる建物本体３０と、を備え、内部に栽培空間２を有し、農地５の上に建てられる農業用ハウス１であって、基礎１０は、栽培空間２を取り囲むとともに、下方の一部が農地５の地中に埋め込まれる断熱層２３を備え、建物本体３０は、基礎１０の上に連なり、断熱層３３で栽培空間と仕切られる外壁３５と、外壁３５で取り囲まれる栽培空間２を上方から覆う屋根４０と、を備え、太陽光の主たる採光領域が屋根４０に制限される農業用ハウス１。【選択図】図２
