The invention discloses a fish bean curd and a preparation method thereof. Based on the conventional fish meat processing, the fish bean curd comprises the following raw materials in percentage by weight: 0.1 to 0.3 percent of monosodium glutamate, 0.1 to 0.3 percent of microcrystalline cellulose, 0.1 to 0.3 percent of glucolactone, 0.03 to 0.06 percent of carrageenan, 0.1 to 0.3 percent of sodium bicarbonate, 0.1 to 0.3 percent of ginger, 0.1 to 0.3 percent of shallot, 0.1 to 0.3 percent of garlic, 1 to 3 percent of salt, 0.5 to 1 percent of egg white, 5 to 15 percent of fresh vegetable juice, 28 to 35 percent of fish meat, 18 to 25 percent of starch, 18 to 25 percent of water and 8 to 15 percent of lard. By the special process, the comprehensive nutritious amount of the product is improved, and the absorption of human bodies on proteins, carotene, various vitamins and various mineral substances such as calcium, phosphorus, iron and the like which are contained in aloe (or peanut, soybean, celery, carrot and the like) early vegetable juice is increased, so that the aim of health care of human bodies is fulfilled.