The invention provides a novel column-shaped three-dimensional cultivation method and device for medical
dendrobium. The method is characterized by comprising the following steps of making a cultivation device serving as an auxiliary article in a hollow column-shaped body structure; filling a cultivation medium in the interior cavity of the hollow column-shaped body, wherein the hollow column-shaped body is at least 0.5 m in height and at least 8 cm in
diameter, the external surface of the hollow column-shaped body is uniformly provided with
seedling planting areas, and a cultivation medium composition mainly comprises the following raw materials in parts by volume: 5-15 parts of barks, 10-30 parts of
saw dust and 3-10 parts of
vermiculite; selecting healthily-growing seedlings to be hardened and then washing the hardened seedlings during cultivating and
transplanting the
dendrobium seedlings; and after sterilizing by using 800-1000 times of liquid
carbendazim,
transplanting the seedlings in different
plant bunches according to the
seedling planting areas, wherein row spaces of the transplanted plants are 4-6 cm*10-15 cm. Compared with the prior art, the cultivation method provided by the invention is very suitable for growth habits of the wild medical
dendrobium; and the medical dendrobium cultivated by using the invention has the advantages of easiness for material obtaining, low cost, long service life, good
water retention and
fertilizer securing effects, high planting density,
land utilization rate capable of being increased by 6-7 times, high and stable yield, good product quality and convenience for management.