The invention discloses egg-laying free range feed and a preparation method thereof. The egg-laying free range feed comprises raw materials in parts by weight as follows: 70-80 parts of dried earthworms, 30-40 parts of dried flies, 200-300 parts of barley flour, 200-250 parts of corn flour, 50-70 parts of bran, 150-180 parts of peanut meal, 50-60 parts of flaxseed flake, 60-70 parts of lotus leaves, 40-50 parts of bamboo leaves, 3-4 parts of pepper leaves, 70-80 parts of green vegetables, 30-40 parts of nostoc commune, 10-20 parts of perilla leaves, 5-7 parts of mint leaves, 30-40 parts of asparagus beans, 20-30 parts of cucumbers, 5-15 parts of green dates, 15-30 parts of duck egg shells, 7-9 parts of dried mulberry, 3-4 parts of dried lycium barbarum, 3-5 parts of fried bean sauce and 1-2 parts of a free range additive. According to the egg-laying free range feed and the preparation method thereof, the materials are green and natural, the feed is prepared finely, is nutrient and healthy and is easy to digest, an egg-laying free range is strong and healthy after eating the feed, the egg laying age in days is early, the egg yield is high, the egg laying peak period is long, and a free range egg has a hard shell, mellow egg flavor and oily yolk and tastes delicious.