Automatic illumination control device of led lighting device

The present invention relates to an automatic illumination control device capable of controlling the LED lighting in a sensory manner by using an illumination-controlling electronic switch for adjusting the illumination of an LED lamp. According to the present invention, the automatic illumination control device of the LED lighting device comprises: a dimming-controlling electronic switch which outputs a pattern signal for supplying or blocking AC input power supplied to an LED lamp; and an LED lamp control device which interprets said pattern signal, and controls the illumination of the LED lamp according to the interpreted pattern signal.