PROBLEM TO BE SOLVED: To provide an agricultural greenhouse heat-insulating material which has excellent heat-insulating effect, does not wet cultivated crop plants when in use because it can prevent condensation, and can be easily taken up and stored when not in use.SOLUTION: An agricultural greenhouse heat-insulating material is a laminate including an aluminum vapor-deposited film flat yarn woven fabric layer, a nonwoven fabric layer, a resin film layer, and a hydrophilic nonwoven fabric layer in order from outside. Further, in the agricultural greenhouse heat-insulating material, the laminate is bonded and unified on a plurality of linear portions which are parallel with a folding or a taking-up direction of the material.SELECTED DRAWING: Figure 1【課題】本発明は、保温効果に優れ、使用時には結露を防止できるため栽培作物を濡らすことのない農業用ハウス保温材であって、不使用時には簡単に巻き取り保管できる農業用ハウス保温材を提供することを目的とする。【解決手段】外側から順に、アルミ蒸着フィルムフラットヤーン織物層と、不織布層と、樹脂フィルム層と、親水性不織布層と、を含む積層体であることを特徴とする農業用ハウス保温材。また、前記発明において、前記積層体を折り畳みまたは巻き取り方向と平行な複数の直線部分で接合一体化したことを特徴とする農業用ハウス保温材。【選択図】図1