This disclosure discloses a method, system and device for initializing an internet device. The method mainly comprises: an application module queries, through a handshake negotiation with a communication module, network standard information, sends the hardware configuration information needed to the communication module, and then informs the communication module of the determined hardware configuration information; and the communication module initializes hardware devices according to the initialization operation information in a stored set of available initialization operation information matched with the hardware configuration information. This disclosure avoids the setting of different software versions corresponding to different hardware ports and parameter configurations and reduces the complexity of system maintenance and management. Besides, the application module can use the same set of codes to adapt to communication modules of different network standards, thus further reducing the complexity of system maintenance and management.