The invention belongs to the technical field of health products, and particularly relates to soft capsules containing cod liver oil, and a preparation method thereof. The soft capsules provided by the invention comprise capsule wrappers and contents encapsulated in the wrappers. The contents of every 1000 soft capsules containing the cod liver oil comprise the following raw materials: 480-520g of the cod liver oil, and 0.5-1.5g of vitamin E; and the capsule wrappers of every 1000 soft capsules containing the cod liver oil comprise the following raw materials: 230-250g of gelatin, 105-120g of glycerin, and 320-350g of purified water. According to the invention, the soft capsules containing the cod liver oil are effective in reducing fishlike smell, easy to accept by people, easy to store and carry, convenient to eat, and easy to digest, and have no influence on the absorption of other nutrients, and have stable quality, a long shelf life, and a plurality of effects of promoting growth and development, protecting eyesight, promoting calcium absorption, enhancing immunity, and enhancing memory.