The present invention relates to a plant cultivation device for replacing a fertilizer pack having a main flowerpot and a water tank flowerpot. Regarding growing an edible plant and an ornamental plant, a fertilizer pack can be rapidly and conveniently replaced without separating a main flowerpot accommodated in a water tank flowerpot. The plant cultivation device for replacing a fertilizer pack plants an edible plant and an ornamental plant, and comprises: a main flowerpot for accommodating a certain amount of either culture soil or organic farming mixed soil a water tank flowerpot for accommodating water with a moisture absorbing member including an orchid stone and perlite to be able to be separated from a lateral surface of the main flowerpot on the moisture absorbing member, and providing moisture to the edible plant and ornamental plant at least one fertilizer pack disposed in a fertilizer space having an opened and exposed upper part between an inner diameter surface of the water tank flowerpot and an outer diameter surface of the main flowerpot so as to be easily withdrawn and replaced, wherein roots penetrating through a root growing hole grow and penetrate through the fertilizer space, and either water-soluble nutrients or organic nutrients are dissolved by the moisture of the water tank flowerpot and provided to the edible plant and ornamental plant and a root separation inducing member coming in contact with the bottom of the main flowerpot, disposed between the fertilizer pack and the moisture absorbing member of the water tank flowerpot, pressurizing and fixing the moisture absorbing member from an upper side, preventing separation of the moisture absorbing member accommodated in the water tank flowerpot, and inducing separation of the fertilizer pack from the roots growing between the fertilizer pack and the moisture absorbing member.COPYRIGHT KIPO 2015본 발명은 식용식물 및 관상용 식물을 생육함에 있어, 수조화분에 수용된 메인화분을 분리시키기 않고도 신속하고 간편하게 비료팩을 교체할 수 있도록 한 메인화분과 수조화분을 갖는 비료
