Charging policy obtaining method and apparatus

Embodiments of this application disclose a charging policy obtaining method and apparatus. The charging policy obtaining method may be used in a broadband network gateway, and specifically includes the following steps: receiving an authentication, authorization, and accounting request from user equipment, where the authentication, authorization, and accounting request includes a user name and a user equipment identifier; sending a charging policy request to a first server, where the charging policy request includes a first field and a second field, the first field is used to carry the user name, and the second field is used to carry the user equipment identifier; and receiving a charging policy response sent by the first server, where the charging policy response includes a charging policy corresponding to the user name and the user equipment identifier, and obtaining the charging policy from the charging policy response.