The invention discloses a lettuce-shrimp cake capable of clearing heat and refreshing and a preparation method thereof. The lettuce-shrimp cake capable of clearing heat and refreshing is prepared from the following raw materials in parts by weight: 4-5 parts of fresh Chinese rose flowers, 3-4 parts of lettuce, 2-3 parts of sweetened bean paste, 1-2 parts of jasmine flowers, 1-2 parts of dried tangerine or orange peel, 1-2 parts of fruits of Chinese magnoliavine, 200-210 parts of shrimp mince, 80-90 parts of frozen surimi, 20-25 parts of garlic juice, 18-20 parts of garlic powder, 15-18 parts of minced garlic, 0.3-0.4 part of nisin, 10-12 parts of table salt, 18-20 parts of soybean oil, 12-15 parts of white granulated sugar, 10-12 parts of egg liquid, 5-6 parts of cassava starch, 3-4 parts of soybean protein isolate, a proper amount of breadcrumbs, a proper amount of plant oil and a proper amount of water. The preparation method comprises the following steps of: chopping the fresh Chinese rose flowers, uniformly mixing the chopped fresh Chinese rose flowers with the sweetened bean paste, putting the mixture on the lettuce, putting the obtained materials in a food steamer for steaming, drying the steamed materials, and grinding the dried materials into powder. The fresh Chinese rose flowers are fragrant, and the fresh Chinese rose flowers are mixed with the sweetened bean paste, so that the sweetness is moderate; the lettuce has faint scent and is good in taste.