The present invention relates to a human body sensing illumination device so as to detects a human body to light the lamp, a substrate, and an infrared sensor for detecting emitted infrared ray from the human body, it is fixedly mounted to the substrate infrared sensor inside the accommodation space with the so formed in the main housing can be sensed surface is mounted to be exposed upward, rotatably coupled to the main housing and the swinging cross-refractive-index variable factors of different patterns are formed so that change the energy focused to an infrared sensor by rotation by interfering with the rocking housing by the housing, the magnetic force generated or not to be able to rotate about the swing housing to the main housing pivoting drive and, during the human body detection signal delay time is set is received from the infrared sensor lamp and controls the lamp to be a light emitting , delay fluctuations housing cycle oscillation is set for a time and drives the rotation driving unit to be normally and reversely rotated by the rotation angle set for the main housing when the human body detection signal from the infrared sensor set and held the delay time is counted again and the body from the infrared sensor When the detection signal is not received at the end of the delay time condition and a control unit for switching off the lamp. According to this human body detection type illumination device, applying power only upon rotation, while the structure is simple to detect the stop body by using a magnetic force in a first direction, and to reduce when the power is applied to turn off the power consumed by the structure to be automatically restored It can provide the advantage that.