Pet 1+x certificate refers to a certificate issued by a pet training institution, which is mainly used to prove that a pet has acquired certain skills and qualities after certain training.

Pet 1+x certificate has the following functions:

1. Prove the quality and ability of the pet: 1+x's certificate can prove that the pet has undergone professional training and exercise and has certain skills and accomplishments. This can make pet owners and others get along with their pets with more trust and peace of mind, and reduce the problems and troubles that pets may bring.

2. Improve pets' social skills: Through the training and training of pet 1+x certificate, pets can learn to get along better with others and improve their social skills. This is very important for pets, which can make them better adapt to various environments and situations.

3. Increase the knowledge and skills of pet owners: During the training of pet 1+x certificate, pet owners will also learn some knowledge and skills about pet training and maintenance. These knowledge and skills can help pet owners take better care of and manage their pets and improve their quality of life.