A planting bed capable of regulating planting medium temperature is provided, which comprises a trestle and a heat exchange planting utensil. The trestle comprises a foot stand that is supportively braced to form an off-ground table surface. The heat exchange planting utensil comprises an off-ground planting region that is formed with a U-shaped section and a pocket-type heat exchange region that is intervally formed by the bottom of the off-ground planting region. Several heat exchange planting utensils are configured on the trestle by having the bottom of the pocket-type heat exchange region contacted with the table surface of the trestle, in which the off-ground planting region is filled with a planting medium that is utilized for growing plants, and a heat exchange fluid guided to flow in the heat exchange region is utilized for regulating the planting medium temperature, thus to improve oxygen uptake for the roots of the plant from the planting medium.本發明提供一種調節植栽介質溫度的植栽床,包含一架台,具角架撐置形成離地的台面;一熱交換植栽器皿,形成有斷面呈U槽型的一離地植栽區,及由離地植栽區的底部間隔形成的一槽穴型的熱交換區,多個熱交換植栽器皿經由槽穴型熱交換區的底部接觸台面而配置於架台上;其中,離地植栽區充填有栽種植物用的植栽介質,熱交換區內導流有熱交換流體調節植栽介質的溫度,以促進植物的根部在植栽介質中吸收氧分。1‧‧‧植栽床11‧‧‧架台13‧‧‧角架14‧‧‧床面140‧‧‧保溫層15‧‧‧熱交換板150‧‧‧植栽溝151‧‧‧溝槽2‧‧‧植物20‧‧‧植栽區21‧‧‧葉部22‧‧‧根部23‧‧‧植栽介質30‧‧‧熱交換區31‧‧‧熱交換流體32‧‧‧致冷器33‧‧‧導流孔416‧‧‧底槽60‧‧‧地表植栽區
