A kind of two-layer equation plant culture plant bed is planted unit for several plants and is put, and includes a pedestal, and is mounted on the pedestal and plants the upper load bearing unit, a lower load bearing unit that unit is put for the grade plants. The pedestal includes two edge-on units, each edge-on unit has two struts for supporting the front Hou interval, and one support the front Hou extension side lever, and the lower load bearing unit includes the download desk being erected on the grade side levers, the download desk has the guide channel of several struts for respectively corresponding the edge-on unit such as this and the shift motion that limits the download desk, and load bearing unit includes the upper microscope carrier being movably erected on the pedestal on this. The area that the download desk is staggered with microscope carrier on this can thereby be increased, allow the plant for being placed in the download desk to plant unit and obtain the sunlight of needs, and facilitate watering.一種雙層式植物栽培用植床,可供數個植栽單元擺放,並包含一個基架,以及安裝在該基架上並可供該等植栽單元擺放的一個上承載單元、一個下承載單元。該基架包括兩個側立單元,每個側立單元都具有兩支前後間隔的撐桿,以及一支前後延伸的側桿,而該下承載單元包括一個架設在該等側桿上的下載台,該下載台具有數個分別對應該等側立單元之撐桿並限制該下載台之移動行程的導引槽,而該上承載單元包括一個可移動地架設在該基架上的上載台。藉此可以增加該下載台與該上載台錯開的面積,使得擺放在該下載台的植栽單元可以獲得需要的陽光,並方便澆水。