The invention relates to the field of snail feed, in particular to white jade snail concentrated feed and a preparation method thereof. The white jade snail concentrated feed is prepared from, by weight, 20-25 parts of wheat bran, 8-12 parts of cooked soybean meal, 10-14 parts of corn flour, 10-15 parts of cooked pea meal, 15-20 parts of eggshell powder, 10-15 parts of shrimp shell powder, 10-15 parts of bone meal, 8-10 parts of earthworm powder, 8-10 parts of three-worm powder, 8-10 parts of lentinus edodes powder, 3-6 parts of sweet potato powder, 3-5 parts of glucose, 2-3 parts of sunflower leaves, 4-6 parts of wedelia chinensis, 3-4 parts of herba fibraureae recisae, 3-4 parts of hibiscus tiliaceus, 4-6 parts of yeast powder, 1 part of cod-liver oil and 1-2 parts of additive. The preparation method mainly includes the steps of raw material weighing, smashing, mixing, packaging and the like. All the ingredients are reasonably matched, the formula is reasonable and practical, nutrients are comprehensive, and preparation is easy; the immune capacity of white jade snails is effectively enhanced, the shell apex fall-off disease and tuberculosis can be effectively prevented and treated, and the white jade snails can rapidly grow.