The invention discloses a fresh dendrobium officinale freeze drying processing method. The method comprises the following steps: 1) raw materials selection and processing; 2) segmenting; 3) spreading on a plate and loading; 4) performing quick-freezing; 5) adding and enrichment of hydrolase (6); 7) performing secondary freeze-drying; 8) discharging; 9) sorting a semi-finished product; 10) packaging; 11) obtaining the finished product and warehousing; and 12) eating. The method clears the requirement of dendrobium raw materials, quantifies the indexes of cut-out length, loading amount, a hydrolase enrichment method, quick-frozen temperature and time, a freeze-drying curve program and discharging, semi-finished product sorting work and environment in each step, a whole processing step is controllable, the nutrient composition, shape, natural color, tissue structure and flavored substance of dendrobium officinale can be kept for the dendrobium officinale product, surface hardening is not generated on the product, the tissue is in a porous sponginess state, the water reabsorbing capacity is good, eating is convenient, rebound is realized by immersion, the eating is convenient, weight is light, preservation resistance is realized, no especial requirement is generated on ambient temperature, and the fresh dendrobium officinale can be kept for about 2 years under dark condition. The method has important meaning for developing product diversity, increasing the market competitiveness, and increasing the economic benefit.