The invention discloses a cherry fruity ice cream and its preparation method. The cherry fruity ice cream is made from the following raw materials of: by weight, 40-60 parts of a cherry juice, 8-15 parts of a strawberry juice, 8-15 parts of a watermelon juice, 40-60 parts of whole milk, 10-20 parts of white sugar, 5-10 parts of cream and 30-50 parts of water. The preparation method comprises the following steps of: 1) uniformly mixing each raw material to obtain a mixture; 2) sterilizing the mixture; 3) putting the mixture into a homogenizer for homogenization; 4) rapidly cooling the mixture to minus 2-4 DEG C, and aging at the temperature; and 5) filling the aged mixture into a stirring barrel of a freezing machine, freezing at the stirring state, taking out, packaging, and quick-freezing and hardening to obtain the ice cream. The ice cream provided by the invention has a simple preparation method, contains no chemical additive, and has health-care effects of whitening, beautifying, clearing away summer heat, strengthening physique and the like.