Method for establishing PAYG-ID

The invention discloses a method for establishing a PAYG-ID. The PAYG-ID comprises a Q-ID function code, a PAY-ID function code and a Secret Key function code. The Q-ID function code comprises a Q-ID function code, a PAY-ID function code and a Secret Key function code. The Q-ID function code is used for performing level-to-level management on different areas where products of different models are sold internally; the PAY-ID function code is a product identification code, namely a plain code, which can be directly viewed by a user on a product packaging shell or a UI interface of a product; the Secret Key function code is an internal management password of the product, namely a secret code. According to the PAY-ID established in the invention, the relation between the product code and the sales area is established, encryption management is carried out on the code, accurate management of the product by a background is realized, the related ID is not easy to crack after being encrypted, and the method has the ch