The utility model relates to a planting wall device with water retaining function.For holding at least one planting and at least one soil layer,And hung on a wall stand,The utility model comprises a groove body.It has a pair of first side plates.A pair of second side plates and a bottom plate are connected with each other to form a holding space.To accommodate the planting and the soil layer,And the bottom plate is provided with at least one drainage hole；A plurality of water retaining elements are arranged in the holding space.And placed in the space between the planting and the soil layer and the first and / or the planting and the soil layer and the second and / or the planting and the space between the soil layer and the bottom,To fix the position of the planting and the soil layer,And absorb water and store it when supplying water,So as to keep the planting moist with the soil layer,And the water retaining elements are made of recycled materials,It is light and not perishable.And has excellent water retention.一種具保水功能之植栽牆裝置，供以容置至少一植栽及至少一土壤層，並懸掛於一牆架上，其包括一槽體，具有一對第一側板、一對第二側板及一底板並相互連接形成一容置空間，以容納該植栽及該土壤層，而該底板係設有至少一排水孔；複數個保水元件係佈設於該容置空間內，且分別置於該植栽及該土壤層與該對第一側板及/或該植栽及該土壤層與該對第二側板之間及/或該植栽及該土壤層與該底板所夾之空間內，以固定該植栽及該土壤層的位置，且於給水時吸收水分並儲存，以使該植栽與該土壤層保持濕潤，而該等保水元件係選用回收材料製成，係具有重量輕與不易腐爛之特性，且具有極佳之保水性。
