The invention relates to health-care dendrobium noodles which are prepared from the following components in parts by weight: 2-4 parts of dendrobium, 85-95 parts of wheat flour, 1.5-2.5 parts of barbary wolfberry fruit, 1.5-2.5 parts of American ginseng, 1.5-2.5 parts of grosvener siraitia and 0.5-1.5 parts of table salt. According to the health-care beauty-maintaining noodles prepared from the wheat flour, barbary wolfberry fruit, American ginseng, dendrobium extracting solution, grosvener siraitia extracting solution and table salt in a fixed proportion, the wheat flour, barbary wolfberry fruit, American ginseng, dendrobium and grosvener siraitia are natural plant raw materials, any additive is not added, the raw materials are proportioned simply and reasonably, and the effects of the raw materials supplement each other, so that the prepared noodles are rich in nutrition and easy to digest, have the characteristics of rich nutrition, reasonable component matching, low cost, simple production process, fresh taste, tastiness and smoothness, have the effects of improving immunity, benefiting qi and nourishing blood, nourishing yin and clearing away heat, clearing away the lung-heat and lubricating the intestines, clearing away heat and relaxing the bowels, helping produce saliva and slake thirst, maintaining beauty and keeping young, nourishing yin and nourishing the stomach, prolonging life and the like, do not harm other parts of a human body after being eaten for a long term, and have an extremely strong health-care effect.