The invention provides a multi-function electric mechanism which is installed on a wall and is composed of a single body (1). In the hollow interior of the body, contacts '''C'' of different combinations are arranged to make the electric mechanism applied to different switch structures, while the other members of the mechanism are not needed to change. Except for an outer actuator member (3), for example, in a construction with an indicator light the outer actuator member (3) has a viewer (3a). The body of the mechanism has a lid (4). A switchover unit (5) is placed on the lid and transmits manual pressure exerted by a user on the outer actuator member (3) to contacts.