Abstract: A rotary optically controlled LED night lamp includes: a body; and a rotary plug holder connected to the body; wherein the body has an upper portion and a lower portion, the lower portion has a containing space, an optically controlled switch is provided inside the containing space; a round slot is provided on the lower portion, location flanges are provided on the round slot; wherein the rotary plug holder includes: a holder body; and a rotary connector connected to the holder body; wherein location slots engaged with the location flanges are provided on the holder body. An LED is connected to the optically controlled switch in such a manner that the LED is controlled optically; the location flanges are engaged with the location slots in such a manner that the night lamp can rotate for 360° freely for solving a illuminating angle locating problem.