A method and an apparatus for implementing compatibility of different processors are provided. The method includes: in a standby state of a board, obtaining configuration information and a type of a processor on the board; and if a processor type in the configuration information is different from the type of the processor, updating, according to the processor, a parameter that is relevant to the processor and is in the configuration information, and changing FLASH memory chip selection configuration in order to connect the connector to a FLASH memory for storing a BIOS program of the processor.