Abstract: A method for protecting the credibility of a server's hardware, the method including: setting reference values of credible components, encrypting the reference values, and writing the encrypted reference values to available record regions in the Field Replaceable Unit (FRU) of a server; obtaining information of target components of the server, and parsing and extracting needed data fields; and reading the encrypted reference values from the FRU, performing decryption operations, and determining whether the obtained component information is matched with the reference value; if they are not matched, one hardware component of the server is incredible, and a power-off operation is performed, otherwise the hardware of the server is credible, and the server is allowed to continue to run.