CFA, "The Cat Fanciers' Association", is an organization dedicated to the development and protection of purebred cats. There are many types of cats certified by CFA, each with its own characteristics. The following is an introduction to some CFA-certified cat breeds: Siamese cat: Siamese cat is a world-famous short-haired cat and a representative breed of short-haired cat. Siamese cats have a strong and active personality, are witty and flexible, extremely curious and considerate, and can adapt well to the local climate of their owners. Ragdoll cat: Ragdoll cat, also known as "Bradole", originated in the United States and is a hybrid pet cat. It is one of the largest and heaviest cats in existence. Ragdoll cats are relatively docile, quiet and friendly to people. They are called "fairy cats" or "puppy cats".

Scottish Fold Cat: Scottish Fold Cat has a genetic mutation in its ears that causes the ears to bend forward and point toward the front of the head. This kind of cat is happy to be with people, but it suffers from congenital orthopedic diseases and often sits in a sitting position to relieve the pain.

British Shorthair Cat: British Shorthair Cat has a chubby body, short and well-developed limbs, short and dense hair, a big head and a round face. It has a gentle and calm personality, is friendly to people, and is easy to raise. They are active and love to play, but they are also smart and easy to train, making them suitable for interacting with humans.