The utility model discloses a double-head flashlight which comprises a battery cartridge and a flashlight head I which is placed at one end of the battery cartridge. The flashlight head I comprises a collecting lens I and a bulb I which is placed inside the collecting lens I. A flashlight head II is placed at the other end of the battery cartridge, and the flashlight head II comprises a collecting lens II and a bulb II which is placed inside the collecting lens II. The double-head flashlight further comprises a switch which is used for simultaneously controlling the bulb I and the bulb II. Due to the fact that the flashlight heads are placed at two ends of the battery cartridge, the double-head flashlight can light at two directions simultaneously, scope of protection is manyfold enlarged, and the double-head flashlight is very convenient to use.