A modular vertical upright wall vegetation system is disclosed, which mainly comprises a vegetation wall, a water-resisting wall, a plurality of connecting rods that are installed between the vegetation wall and the water-resisting wall, and a plurality of water filling containers that are respectively arranged on the connecting rods located at different heights. In the disclosed modular vertical upright wall vegetation system, it is convenient to increase or decrease the amount of connecting rods and the water filling containers, and the entire irrigation can be achieved by permeating the moisture which is generated from the irrigating water of each water filling container into the vegetation wall. Hence, a simplified irrigation approach can be obtained and the loss of the irrigation water can be possibly lessened, the fall prevention of pot cultures or workers can be attained, and the external wall greening and the usage requirements for high-floor buildings can be correspondingly achieved and satisfied.本發明主要係在一植生牆及一阻水牆之間安裝複數連接桿,另有複數盛水容器分別設於不同高度位置的連接桿上。俾獲致一種方便增減連接桿及盛水容器數量的模組式垂直立牆植生系統。整體模組式垂直綠牆植生系統,即可透過各層之盛水容器內的灌溉水所產生的水氣透入植生牆的方式進行灌溉,不但灌溉容易且灌溉水亦較不會流失,以及不會有盆栽容器墜落的潛在威脅,相對較符合高樓層建築之外牆綠化使用需求。11‧‧‧生長介質12‧‧‧植物20‧‧‧建築物21‧‧‧水塔30‧‧‧植生牆31‧‧‧格位40‧‧‧阻水牆41‧‧‧板件50‧‧‧連接桿60‧‧‧盛水容器61‧‧‧排水口70‧‧‧遮罩80‧‧‧循環模組81‧‧‧迴水管82‧‧‧抽水幫浦90‧‧‧儲水筒91‧‧‧出水管92‧‧‧閥件