Abstract: A flashlight with built-in lighter, which is to attach a cigarette lighting device to a regular flashlight, the cigarette lighting device being composed of: a locating plate fixedly placed inside the housing of the flashlight, a heat-resistant pad fixedly attached to the locating plate, having two semi-circular protrusions to form a groove therebetween for a heating wire to be placed therein, a heat-resistant bushing placed inside a cigarette ligthing hole on the housing of the flashlight with one end fixedly attached to a locating ring that is placed on the heat-resistant pad, a heating wire with both ends fixedly attached to the locating ring and connected with a push-button switch and a power source by electric wire through a series connection thereof; by means of the above arrangement to form a flashlight for illumination and for cigarette lighting.