The present invention discloses a plant culture device. The plant culture device comprises a culture box body and a partition plate; the partition plate is arranged in a middle part of the culture boxbody so as to divide the culture box body into an upper external root absorption space and a lower root system absorption space; and the external root absorption space part in the culture box body isprovided with a ventilation opening and a liquid discharge opening, the root system absorption space part in the culture box body is provided with a water inlet and a water outlet, planting holes arear...
