A plant incubator includes a box body, a plurality of incubators, a plurality of light sources, a nutrient solution supply source and a constant temperature control device, wherein the box body has a plurality of layered spaces； the incubators are respectively located in the layered spaces, and the contents of each incubator are filled with nutrient solutions.The light sources are arranged above the cultivation tanks, and the nutrient solution supply source is connected with the cultivation tanks, and the nutrient solution supply source outputs the nutrient solution to the cultivation tanks.The thermostatic control device is connected with the nutrient solution supply source to control the temperature of the nutrient solution output from the nutrient solution supply source to be maintained in a first predetermined temperature range.Thus, a micro environment suitable for plant growth is created.一種植物培養箱，包含有一箱體、複數個培養槽、複數個光源、一營養液供應源與一恆溫控制裝置，其中，該箱體具有複數個分層空間；該些培養槽分別位於該些分層空間中，各該培養槽內容裝營養液。該些光源設置位於該些培養槽上方；該營養液供應源連通該些培養槽，該營養液供應源輸出營養液至該些培養槽。該恆溫控制裝置連接該營養液供應源，用以控制該營養液供應源所輸出的營養液之溫度維持於一第一預定溫度範圍。藉此，營造適合植物生長的微環境。
