The object of the invention is a swimming vest for dogs comprising an outer covering, at least one swimming pad placed into an openable pocket portion, an inner covering, and a strap closing element enclosing the body of the dog, these together forming a blanket, close-fitting on the body of the dog like a diving suit, which allows the water training, rehabilitation treatment of dogs unable to swim due to bodily injury or breed characteristics, and can also be used as a life vest.