The present application provides a backlight driving circuit and a display device. The backlight driving circuit includes a light-emitting module, a light-emitting control module, and a constant current source. Wherein the light-emitting module includes a first light-emitting unit for receiving a first power supply signal and a second light-emitting unit for receiving a second power supply signal. A first connection terminal of the light-emitting control module is electrically connected to the first light-emitting unit, and a second connection terminal is electrically connected to the second light-emitting unit to control the first light-emitting unit and the second light-emitting unit to emit light in a time-division manner.