Abstract: The present invention relates to an operation apparatus including an operation terminal used for operating a domestic apparatus near a wall surface. An operation host section (20) includes a module of an accessing function element and electric supply function element, which module discharges an operation signal in the air, or includes a member in which such a module is disposed in an array form. Power supply in a non-contact manner and transmission of an operation signal in a wireless manner are carried out between the operation terminal and the operation host section. The operation terminal is easily adhered extremely thin onto the wall and allows providing an operation function without providing any physical wiring. Further, few electricity is wasted, and operation is possible under conserved energy. Hence, an operation system is provided which uses an operation terminal having low security risks while achieving flexibility in its layout.