A dog shoe includes a fastening strap, wherein the fastening strap is configured so that in a fastened state, the fastening strap exerts pulling forces towards the middle of the dog shoe at two side portions of the dog shoe, and the fastening strap is located between a position for placing a dog's dewclaw of the dog shoe and a position for placing the dog's phalangeal joints of the dog shoe. The fastening strap in the dog shoe does not limit movable joints of a dog's foot, has few restrictions on the dog's foot, and makes it comfortable for the dog's foot; meanwhile, the fastening strap may also fasten the dog shoe on the dog's foot securely, providing the dog shoe with a desirable enveloping effect for the dog's foot, so that after the shoe is put on the dog's foot, the shoe does not fall or loosen easily.