The invention relates to a planting support structure, which mainly comprises a metal pipe, a waterproof cover and an isolation membrane sleeve, wherein the metal pipe is fixed with the planting plant to support and erect the plant, the two ends of the metal pipe are respectively plugged with the waterproof cover, and the one end of the metal pipe is sheathed with an isolation membrane sleeve, thereby, the metal pipe with the isolation membrane sleeve end is embedded in the soil In order to isolate water and gas from the pipe wall for a long time, effectively support plants and protect the pipe fittings from rust corrosion.本創作係有關於一種植栽支撐結構，其主要包含金屬管、防水蓋及隔離膜套，其中所述金屬管對應與種植植物固定，用以支撐豎立植物，所述金屬管兩端分別套塞有所述防水蓋，再於所述金屬管一端套設有隔離膜套；藉此，利用套設有隔離膜套端的金屬管嵌入土壤中，以能隔離水氣長期侵蝕管壁，有效達到支撐植物並同時具有保護管件不生鏽腐蝕的功效者。
