An embedded universal integrated circuit card (eUICC) management method, an eUICC, an SM platform, and a system are provided. The method includes: acquiring, by an eUICC, capability information of a terminal in which the eUICC is embedded; and sending, by the eUICC, the capability information of the terminal to an SM platform, so that the SM platform manages a profile on the eUICC or generates a profile or manages the eUICC according to the capability information of the terminal. Capability information of a terminal in which the eUICC is embedded is reported to an SM platform, so that processing such as generation or management of a configuration file can match the capability information of the terminal, which improves processing accuracy.