An edible healthy gelatin crystal and the preparation method thereof belong to the field of Chinese healthy product processing technology. The edible healthy gelatin crystal is prepared from one, two, three, or four of preprocessed donkey skin, deer horn, velvet and turtle shell as main materials or from one, two or three of donkey-hide gelatin, deer-horn gelatin and turtle shell gelatin as main materials by soaking in water, cutting into small pieces, decocting with water, filtering, reducing water to 20 to 35% by concentration with slow fire to obtain gelatin paste for standby, adding adjuvant, cooling, shaping, and drying in the shade to obtain the product. Based on the prior pharmaceutical technology, the invention can prepare a directly-edible functional food mainly containing donkey-hide gelatin, deer-horn gelatin, velvet, turtle shell gelatin, etc. by decocting animal skin, bone, shell or horn with water to obtain gelatin or drying the gelatin, and adding plasticizer and other additional components. The functional food can be made into 'soft capsule' that can be applied directly, and has simple and practical preparation process and convenient usage. The soft capsule preparation has the advantages of convenient usage, good portability and wide application range, and can be taken orally, swallowed directly or applied externally.