An assembled electronic apparatus and a control method thereof are provided. The assembled electronic apparatus includes a first body and a second body. A second processor shares a partial content of a sensing record generated by a sensing module through a second information sharing module. The first body and the second body are connected with each other through the first connector and the second connector. After being connected with each other, a message is transmitted by one of the first processor and the second processor to another one of the first processor and the second processor, so that a function is executed by the another one of the first processor and the second processor through the corresponding first processor or the corresponding second processor according to the message. The first processor shares a content of the sensing record generated by the sensing module through a first information sharing module.