The invention discloses a dendrobium fimbriatum cutting seedling method which comprises the steps that cutting branch selecting is carried out, wherein triennial dendrobe branches are selected, and branch middle portions or top portions are taken; shoot cutting is carried out, wherein cutting ends of the dendrobium fimbriatum branches are subjected to oblique cutting by the angle of 30-60 degrees, then the cutting ends are soaked in an ABT rooting powder solution, and soaking time is 6 h; cutting propagation is carried out, wherein processed cutting branches are vertically inserted into a seedling culturing matrix where humic pine bark is paved; and seedling culturing management is carried out, a seedbed is subjected to watering every 5 days, temperature is controlled to be about 25 DEG C, humidity is controlled at about 60%, and when 3-5 roots grow at the cutting ends of the dendrobe cutting branches and buds start to grow from middle internodes, seedling transplantation can be carried out. The cutting branches are the middle portions or the upper portions of triennial dendrobe stem branches, material sources are wide, cost is low, local materials can be used, meanwhile, the selected seedling culturing matrix is the humic pine bark, the source is wide, cost is low, and seedling culturing effect is obvious.