The invention discloses a micro-nano hyacinth bletilla skin-care powder and a processing method thereof. The hyacinth bletilla skin-care powder prepared by the method of the invention is good in dispersibility, easy and uniform to smear, quick for skin absorption, applicable to whitening and moisturizing skin, making up and rendering, and convenient to use. The invention is implemented by the following technical scheme: cleaning hyacinth bletilla tubers, cooking or boiling the tubers in boiling water until no white core exists, drying the tubers in the sun, removing the outer skin, pulverizing the raw materials hyacinth bletilla, pearl powder, and borneol respectively with low-temperature pulverizing equipment according to the following proportion in parts by weight: 60-80 parts of hyacinth bletilla, 15-30 parts of pearl powder and 5-10 parts of borneol, to become powder with an average particle diameter of 0.2-0.6 microns, then completely mixing the same, drying the mixture with a low-temperature vacuum drying process in the prior art, then putting the dried mixture into a container for ultrasonic sterilization, and putting the treated mixed powder into a bag for sealing.