The invention discloses a color-changeable lamp. The color-changeable lamp comprises a power source, a light source mounting carrier and a plurality of illuminating light sources. The light source mounting carrier is of a closed structure, and the illuminating light sources are distributed on the outer side face of the light source mounting carrier. A current conversion device electrically connected with the power source is arranged in the light source mounting carrier. A plurality of electrodes which are electrically connected with the illuminating light sources in a one-to-one corresponding mode are arranged in the light source mounting carrier. When the light source mounting carrier rotates, the electrodes located in the light source mounting carrier are electrically connected with the current conversion device. According to the color-changeable lamp, by arranging the current conversion device in the light source mounting carrier, when the light source mounting carrier is controlled to rotate, the illuminating light sources are connected with the current conversion device and then powered on, and thus the lamp is turned on; and by arranging the illuminating light sources with different color temperatures and different color scales on the light source mounting carrier, the requirement for illumination with different color scales and different color temperatures is met through the lamp.