Plug-in system and plug-in management method

The invention provides a plug-in system and a plug-in management method. Logics relative to a specific application are concentrated into an adapter module, and an engine module of the plug-in system is independent of the application and provides a core functionality relative to a plug-in. When different applications need to integrate the plug-in system, the content of the engine module is not required to rewrite, logics relative to the specific application in the adapter module are required to rewrite only, so that flexibility of the plug-in system is improved, developing and designing difficulty of plug-in system developers is reduced greatly, and workload of the developers is reduced; since the engine module is not required to change, the plug-in system can be more stable.