Abstract: Disclosed herein is a server for making a customized application using an integrated application, including a module library in which an integrated plugin and an integrated module have been constructed to provide a plugin and module forming an application requested by a customer company terminal, a layout editor configured to edit a layout within an application formed of the module library in response to a changed change event when the layout is changed in a user terminal to which the customer company terminal or the customer company distributes an application, a parameter database configured to store at least one parameter forming the layout editor and to perform control so that when the change event is generated in the layout editor, the at least one parameter corresponding to the change event is extracted and changed, a module dynamic loader configured to dynamically load the module library to which the changed at least one parameter has been applied in response to the customer company terminal or the user