An office screen includes a screen frame and an LED lighting/gardening device. The frame includes a table board and multiple screen boards connected together and supporting the table board. The LED lighting/gardening device includes a container for growing a plant, means for installing the container on top of the screen boards, and an LED lighting source arranged above the container and containing multiple LEDs affixed to a support. The LEDs are located at a predetermined distance from a top of the plant, and located at a height from the table board, such that the LED lighting source provides the plant with an illumination level not greater than a photosynthesis light saturation point of the plant, and provides an illumination for the table board, wherein the predetermined distance between the LEDs and the top of the plant is less one quarter of the height between the LEDs and the table board.