A kind of plant culture room includes a greenhouse apparatus, first culture apparatus, second culture apparatus and a temperature adjustment device. The greenhouse apparatus defines the lower layer space for containing first culture apparatus, an and upper space for containing second culture apparatus, and with position what side and it is connected to the air inlet of the lower layer space and the opposite side of the position what air inlet and the air outlet for being connected to the upper space. The temperature adjustment device includes the exhaust fan that the air outlet is mounted on adjacent to the humidifier of the what air inlet and one. The exhaust fan starts Hou, and air can be driven to enter the air inlet, flow into the lower layer space by the humidifier Hou, then flow into the upper space upwardly through the floor, and be discharged by the air outlet, can use and constitute preferable planting environment.一種植物栽培室，包含一個溫室裝置、一個第一栽培裝置、一個第二栽培裝置，及一個溫度調整裝置。該溫室裝置界定出一個容裝該第一栽培裝置的下層空間，及一個容裝該第二栽培裝置的上層空間，並具有一個位於一側且連通該下層空間的進風口，及一個位於該進風口之相對側且連通該上層空間的出風口。該溫度調整裝置包括一個鄰近於該進風口的加溼器，及一個安裝在該出風口的抽風機。該抽風機啟動後，能帶動空氣進入該進風口，通過該加溼器後流入該下層空間，再向上通過該樓板流入該上層空間，並由該出風口排出，可藉以構成較佳的栽培環境。
