PURPOSE: An indoor greening system is provided to form nature-friendly interior, and to provide humidification and antibacterial effects. CONSTITUTION: An irrigation device supplies water which is necessary for the growth of bryophyte planted on a panelized vegetation block from the upper side of the vegetation block. A drain-pan comprises a partition(75) dividing the inside into a first water chamber(71) and a second water chamber(72). The first water chamber has a strainer(91) on an inlet port for inflowing water falling down from the upper part of the panelized vegetation block. The irrigation device includes a water jet pipe(50). A return means comprises a return line(102) connecting the second water chamber and the water jet pipe, and a return pipe(104) mounted on the return line. A shielding plate(80) prevents water from spraying from the irrigation device to the indoor. A water absorber(30) absorbs and stores water. A vegetation mat(40) supplies water absorbed and stored in the water absorber to the surface.본 발명은 실내 벽면에 패널화를 이루도록 가로방향, 세로방향으로 배열되고 이끼식물이 식재되는 복수의 식생블록, 식생블록에 식재되는 이끼식물의 생장에 필요한 물을 패널화된 식생블록의 상단 측에서 하측으로 공급하는 관수장치, 패널화된 식생블록의 하단 측에서 낙하하는 물을 받는 물받이를 포함하는 실내녹화 시스템을 제공한다.
