Plug-in method, plug-in device and related equipment

The invention provides a plug-in method and device and related equipment, and the method comprises the steps: building communication between an IPTV soft terminal and a host APP after the IPTV soft terminal detects that the host APP is in a login state; after the host APP is started in advance, starting a zero-configuration APK of the IPTV service; based on the zero-configuration APK, performing startup authentication on the IPTV service; if the authentication is passed, pulling up a flow plug-in of the IPTV service and a plug-in of an EPG display playing system; and if the authentication is not passed, feeding back authentication failure information to the host APP, so that the host APP performs authentication processing based on the authentication failure information. According to the scheme, after the host APP is started in advance, the IPTV service is subjected to startup authentication, and after the authentication is passed, the flow plug-in of the IPTV service and the plug-in of the EPG display playing