The utility model discloses a charger with illumination function, which includes dry batteries and a socket, wherein, a two-way parallel booster circuit and LED lamp lighting control module are provided between the dry batteries and the socket, the LED lamp lighting control module includes an led lamp, a booster circuit control electronic switch, an LED lamp electronic switch and an LED lamp control switch; the dry batteries, the two-way parallel booster circuit and the socket constitute a charge loop; the dry batteries, the LED lamp control switch, the booster circuit, the control electronic switch, the two-way parallel booster circuit, the LED lamp and the LED lamp electronic switch constitute an illumination loop, which has advantages of relatively simple circuit structure and lower cost; the setting of the two-way parallel booster circuit and the LED lamp lighting control module, allows the charger can not only easily realize charge, but also can provide an illuminating function to users by the LED lamp lighting control module, as a carry-on flashlight, thereby increasing the facilitation in use, improving the use ratio of the charger and having a wide application.