The invention relates to a lamp structure and in particular relates to a lamp capable of switching between white light and infrared light by a single-control switch, belonging to the technical field of LED lamps. According to the technical scheme adopted by the invention, the lamp capable of switching between the white light and the infrared light by the single-control switch comprises a heat dissipation device and a base plate which is arranged inside the heat dissipation device, wherein a plurality of white LED light sources and infrared LED light sources are arranged on the base plate; a driving power supply is arranged at the top end outside the heat dissipation device and is used for providing working power supply for the white LED light sources and the infrared LED light sources of the base plate, so that the white LED light sources and the infrared LED light sources can switch the working states. The lamp capable of switching between the white light and the infrared light by the single-control switch is safe and reliable, is compact in structure, convenient to mount and use and high in control accuracy, and is capable of effectively switching and controlling normal white-light illumination and infrared light supplement in night.