An upright green wall medium fixation module comprises at least one square lattice body. Each square lattice body comprises a square back plate and a square cover plate that are matchingly profiled and correspondingly assembled. The square back plate comprises a plate body having an upper end, a lower end, and a front surface that is recessed with a first accommodation room penetratingly communicated with the upper and the lower ends and is corresponding to both sides of the first accommodation room. The square cover plate comprises a plate body that is configured with a pane corresponding to the first accommodation room of the square back plate. When the disclosed is applied, a medium utilized for fixing the plant is stuffed in the first accommodation room of the square back plate, and the pane of the square cover plate is served as a passage for the outward growth of the plant. Accordingly, the medium can be stably and securely fixed, a to-be-applied greening wall can be uprightly formed, and the usage requirement for external walls being greenish for tall buildings can be relatively satisfied.本發明之垂直綠牆介質固定模組,係包括至少一方格體,各方格單體係由外形輪廓相符的一方形背板及一方形蓋板對應組合構成;其中,方形背板係在其板體正面凹設有一貫通板體上下端的第一容置空間,於板體正面相對於第一容置空間兩側的位置;方形蓋板係在其板體上設有一對應於第一容置空間的窗格。於使用時,係將用以固定植物的介質填塞於第一容置空間,由方形蓋板之窗格供成為植物向外生長的通道,除可對介質產生相對較為穩固、可靠的固定效果外,更有助於將所應用之植生牆築構成垂直狀,相對較能符合高樓層建築之外牆綠化使用需求。11‧‧‧植物12‧‧‧介質40‧‧‧方格體41‧‧‧方形背板411‧‧‧第一容置空間413‧‧‧第三接合部42‧‧‧方形蓋板421‧‧‧第二容置空間423‧‧‧第五接合部425‧‧‧窗格
