The invention provides an integrated bracket container seedling root irrigation plant wall composed of at least one unit plant wall body. Each unit plant wall body comprises a bracket, container seedlings and a negative pressure root irrigation system. Each bracket is composed of a stand frame and multiple layers of supporting pockets located in the stand frame. Each stand frame is formed by two plate frames of the same structure through connection fixing rods. Each plate frame is formed by fixing multiple transverse rods arranged in parallel and multiple vertical rods arranged in parallel in a crossed manner. Each supporting pocket is formed by making a full-size flexible pocket bag or pocket net with the width equal to the interval between the two corresponding adjacent vertical rods pass through the transverse rods between the two corresponding adjacent vertical rods in a detoured manner and fixing the upper end edge and the lower end edge to the top of the corresponding stand frame and the transverse rod at the bottom, and multiple layers of pocket bodies are formed in the space between the two corresponding plate frames. The container seedlings are placed in all the layers of pocket bodies in rows and face the same faces of the stand frames to form the plant wall. One negative pressure root irrigation system is arranged for one layer of pocket bodies. The plant wall is particularly suitable for ecological protection and perpendicular greening of steep rock slopes or vertical retaining walls.