To provide an automatic controller for electric fitting capable of automatically maintaining a comfortable condition according to an environmental change in an entire building.

The automatic controller for electric fitting has an indoor environmental sensor (12) which can detect at least an indoor temperature, an outdoor environmental sensor (11) which can detect at least an outdoor temperature, and an information processing means (15) which can be controlled by calculating a condition for optimizing an indoor environment based on information detected by the indoor environmental sensor and outdoor environmental sensor and transmitting a calculated result to electric fittings (2, 3, 4). The information processing means performs calculation by obtaining a combination of states of a plurality of electric fittings including a degree of opening or closing which each of the plurality of electric fittings should take.