Tree bank irrigation device

The utility model relates to the technical field of tree irrigation, in particular to a tree bank irrigation device. The tree bank irrigation device comprises a water seepage box, an irrigation piece and a fixing component, the fixing component is installed on the irrigation piece, and the irrigation piece is communicated with the water seepage box through a water conveying pipe; the irrigation part is used for irrigating root systems of trees, the irrigation part comprises an annular pipe and a plurality of capillary pipes, a plurality of hole bodies are formed in the bottom of the annular pipe, and at least one capillary pipe is installed in each hole body; an opening in the top end of the water seepage box is used for collecting rainwater, and the fixing component is used for supporting a trunk of a tree. The capillary tubes on the irrigation part convey water to the position near the root system of the plant at a tiny speed, and the water can be uniformly, appropriately and uninterruptedly wet the root of