The present invention relates to a green system having a rain water storing member and, more specifically, to a green system having a rain water storing member capable of preventing urban floods by installing rainwater storing equipment on the roof or in an empty space between buildings and temporarily storing rainwater； providing a provide spaces to relax for users simultaneously with reducing environmental pollutants by forming a green space by plotting plants； and maintaining the green space for a long time by storing some of the rainwater of the rainwater storing equipment in a rainwater storing tank and providing water for the plotted plants when it is not raining. Therefore, the green system having the rain water storing member proposed by the present invention includes a structure including a plate separated 30-40 cm from the ground surface or a roof floor and columns erected on the bottom to support the plate； the rainwater storing equipment which is installed on the top of the structure and which temporarily stores rain water when it is raining； a pot which is formed on one side of the rainwater storing equipment and which a plant is planted； a plastic mesh which is formed on the top of the rainwater storing facility to prevent an inflow of leaves of the plotted plant from being inputted into the rainwater storing equipment； and the rainwater storing tank which is installed between the columns of the structure and which receives some of the stored rainwater from the rainwater storing equipment and stores.본 발명은 빗물저류수단을 갖는 녹화 시스템에 관한 것으로서, 더욱 상세하게는 옥상 또는 건물사이 빈공간에 빗물저류시설을 설치하여 빗물을 받아 임시 저장해 도시홍수를 방지하고 식생화분에 식생식물을 식재하여 녹지공간을 조성하여 이용자에게 휴식처를 제공함과 동시에 환경오염물질을 감소시키고 빗물저류시설의 빗물 일부를 빗물저장탱크로 저장하였다가 비강우시 식생식물에 물을 공급하여 오랫동안 녹지공간을 유지할 수 있는 옥상의 빗물저류수단을 갖는 녹화 시스템에 관한 것이다.따라서, 본 발명이 제안하는 빗물저류수단을 갖는 녹화 시스템은 지면 또는 옥상바닥에서 30~50㎝ 떨어져 형성되는 판재와, 상기 판재를 지지하도록 바닥에서 기립된 형태로 형성되는 기둥을 포함하는 구조물；과 상기 구조물 상부에 설치하여 강우시 빗물을 받아 임시 저장하는 빗물저류시설；과 상기 빗물저류시설 일측면에 형성되고 식생식물을 식재한 식생화분；과 상기 식생식물
