The present invention forms an independent space by vertically installing the plate-shaped seedling receiving mounting portion facing each other at predetermined intervals in the container-shaped inner space, and allowing the seedling of the plant to pass through the seedling receiving mounting hole so that the root portion is accommodated facing each other. Thus, the light of the LED light source is directly and evenly irradiated to the leaf portions exposed to each of the inner side walls of the container to promote growth, and the nutrient solution is sprayed on both roots exposed while facing each other to intensively and efficiently water and nutrients. It is installed in a partitioned space inside the building or an open space outside the building to mass-produce pesticide-free, eco-friendly plants at high speed and supply them fresh and inexpensively, and a sealed space for plant cultivation inside as a container. Forming, and a housing 110 having an entry means 111 for entering and exiting the worker； The housing 110 is vertically installed in the longitudinal direction to face each other at predetermined intervals to form an independent space, and the seedlings of the plant pass through the seedling receiving hole 121 formed at predetermined intervals to accommodate the root portion facing each other. Seedling receiving mounting portion 120 in the form of a plate to be mounted； A nutrient solution supply unit 130 installed in an independent space between the seedling receiving mounting units 120 and supplying a nutrient solution containing water and nutrients necessary for plant growth to the root portion of the plant； An LED light source unit 140 installed on both inner sides of the housing 110 to evenly and sufficiently irradiate light from the LED light source on the leaf portion of the seedling receiving mounting unit 120； A cultivation environment providing unit 150 installed in the housing 110 to provide environmental conditions necessary for plant cu
