The invention discloses winkle feed and a preparation method. The winkle feed is characterized by comprising, by weight percentage, dried waste fish or fish meal, soybean cake powder, bran, rice husk, vegetable leaves, grass meal, bone tankage, animal visceral meal and shell powder. The method includes: taking the substances according to the proportion, respectively sufficiently grinding the substances, sieving via a 80-mesh sieve, beating the vegetable leaves into vegetable slurry, feeding the raw material powder and the vegetable slurry together into a fish feed mixing machine for mixing for 50 minutes, using a special fish feed circular mould pelletizer to prepare pallet feed with the particle size of 2 millimeters, and airing the feed prior to bagging and packaging. The winkle feed is prepared from multiple feed raw materials in a proportioned manner, provides a feed basis for winkle production, and is reasonable in proportioning of animal protein and vegetable protein in components, rich in nutrient components, and beneficial to digestive absorption of winkles to the various nutrient components. The feed prepared by the formula is easily available to raw materials, good in palatability, easy for digestion and fast in absorption, and the winkles are fast in growth, high in disease resistance and high in cultivation survival rate.