The invention relates to the communication technology field and particularly relates to a fast accreditation information checking method and device based on a device identifier. The fast accreditation information checking method based on the device identifier comprises steps of setting corresponding identification codes for various hardware modules of a commercial affair integrated machine, presetting an identification code on a service terminal, obtaining application input information through the commercial affair integrated machine, adding the corresponding an identification code corresponding to the hardware module in the application input information, transmitting encrypted information to a service terminal, deciphering the encrypted application input information through the service terminal to obtain the application input information and the identification code corresponding to the hardware module, performing verification on validity of the application input information and the identification code, if the application input information and the identification code are valid, returning a prompt of successful registration to the commercial affair integrated device. The fast accreditation information checking method and device based on the device identifier does not need to obtain an information registration table through coming to a counter in person and artificially filling out the table. The information registration table is integrally obtained through the commercial affair integrated machine and the application input information is encrypted, which makes a whole registration process more efficient and convenient.