The present invention relates to an automatic blind system. The present invention comprises: a sensor unit sensing indoor and outdoor environments; a control unit generating a control signal based on information received from the sensor unit; a façade installed on an outer wall of a building to control an exposure area of the outer wall of the building; and a driving unit driving the façade based on the control signal received from the control unit. The façade comprises: a plurality of roll blind units installed on the outer wall of the building to enable a blind to be vertically moved to control the exposure area of the outer wall of the building; and an optical shelf unit positioned in an upper portion of the roll blind unit and configured to enable a panel to be tilted around a rotational shaft installed in the outer wall of the building.
