The described technology relates to a water culture block, which can be stacked in multiple stages along a wall surface, and a water culture device having the same. The water culture block can include a block body including side plates each having an opening, and a bottom plate connected to the side plates to form a receiving space, and at least one overflow tube having a hollow portion and configured to pass through the bottom plate to communicate an inside of the block body with an outside thereof. The water culture block can also include a water tray body formed at an upper portion of the block body and having a through hole for providing a fluid to the receiving space, and a pipe in communication with the through hole and coupled to the water tray body to support the water tray body on the bottom plate.
