An application component communication method and an apparatus using the same are provided to an SCA-based system for efficiently performing data communication between SCA-based application components by using a dynamic connection manager. The application component communication apparatus includes an application module provided in the SCA-based system and driven, an application packaged by a plurality of application components, and an application factory for generating the application and driving the application components by parsing XML files. The dynamic connection manager registers port information of each of the application components, and establishes a connection for data communication between the application components according to the port information. According to the present invention, data communication between the respective application components can be efficiently performed by using the dynamic connection manager.