The invention discloses a feed for artificially feeding crabs in a large scale. The feed is characterized by comprising the follow raw materials in parts by weight: 18-24 parts of yellow corn, 19-26 parts of yellow millet, 1-4 parts of edible salt, 16-20 parts of beef liver, 15-19 parts of snail meat, 3-5 parts of thick broad-bean sauce, 11-19 parts of cucumbers, 15-20 parts of pumpkins, 13-17 parts of chlorella, 2-5 parts of rice wine, 1-3 parts of five spice powder, 14-18 parts of rice husks, 0.4-0.8 part of poria cocos, 0.3-0.7 part of honeysuckle, 0.2-0.5 part of atractylodes macrocephala, 0.6-0.8 part of radix codonopsitis, 4-7 part of a phagostimulant, and a proper amount of water. According to the invention, through optimizing feed components, adding the Chinese herbal medicine in the feed and changing a conventional crab feed processing method, high crab yield under artificial breeding in a large area is achieved, natural characteristic that the crabs are large, healthy and strong, and fat, delicious and nature in taste, high in nutritional value and the like, can be achieved, and the feed provided by the invention goes green and environmental protection, is not added with any additives, simple in preparation, low in cost, and is suitable for common family purchase.