The invention provides a port monitoring method and device. The port monitoring method comprises the following steps: obtaining the identifier of a wireless AP device when the access request of the wireless AP device is received; obtaining the plug-in corresponding to the identifier of the wireless AP device from the plug-in corresponding to the identifiers of all the current wireless AP devices; installing the plug-in corresponding to the identifier of the wireless AP device; and accessing the wireless AP device. By means of the scheme provided by the invention, the problem that the home gateway and a plurality of different wireless AP devices can not be identified and connected can be solved, therefore, the performance and processing speed of the home gateway are improved.