The invention discloses an airing device used in a production process of dendrobium officinale. The airing device comprises a base, clamping rings, an airing frame, an airing plate orientation adjusting and fixing mechanism, a uniform covering protection mechanism and a locking mechanism, wherein a supporting rod is fixed to the center position of the upper surface of the base, a plurality grooves are formed in the supporting rod, the clamping ring is movably installed on the supporting rod, the clamping rings are installed inside the grooves, the uniform covering protection mechanism is installed on the airing frame, a lower airing net is fixed to the airing frame, an upper airing net is arranged on the uniform covering protection mechanism, two locking mechanisms are arranged on the side face of the upper surface of the airing frame, by pushing the airing frame, the clamping rings and the grooves match, the airing frame at the same horizontal height rotate with the supporting rod as the circle center, the positions of the airing frame at different heights are changed, and therefore staggered distribution is achieved, and the dendrobium officinale laid on the airing frame can be fully irradiated by sunlight.