The utility model relates to a column with a telescopic function, which comprises an outer column, an inner column and a lifting device. The outer column is sleeved at one end of the inner column； the lifting device is installed between the inner column and the inner part of the outer column, and the lifting device is A screw is pivotally mounted in the outer column, and the other end of the screw is combined with a screw hole penetrating through the rod seat. When the screw is rotated, the outer column can be moved up and down relative to the inner column, and the height is adjusted； thereby even if the greenhouse is set In the case where the depth of the mounting holes is different, the height of each column is adjusted to be uniform by adjusting the lifting device, and the height of the legs of the greenhouse scaffolding mounted above is equal, and the height can be adjusted. Simpler to save time.本新型係具有伸縮功能之立柱，其包含一外柱、一內柱及一升降裝置，外柱套設在內柱的一端；升降裝置安裝在內柱與外柱的內部之間，升降裝置以一螺桿可樞轉的安裝在外柱內，螺桿的另一端結合貫穿於桿座的螺孔，轉動螺桿時，使得外柱可相對於內柱上下移動，具有調整高度之功能；藉此即便溫室設置處的安裝孔深度不一的情況下，藉由調整升降裝置將各個立柱的高度調整至一致，達到架設於上方的溫室棚架之樁腳具有等高之功效外，也能夠將調整高度的方式更簡單化以節省時間。
