LED emergency lamp circuit with delayed light-off function

The utility model discloses an LED emergency lamp circuit with a delayed light-off function, which comprises an LED driving power supply, an emergency control circuit, a first LED light-emitting circuit and a second LED light-emitting circuit, a storage battery is arranged in the emergency control circuit, and the emergency control circuit is also used for controlling the first LED light-emitting circuit to emit light when an external control switch is switched from a closed state to an open state and the commercial power is normal. Power is supplied by the storage battery within a preset delay time, so that the second LED light-emitting circuit emits light within the preset delay time for delayed illumination, and the second LED light-emitting circuit does not emit light after the preset delay time is up; the utility model has the advantages that when the mains supply is normal and a user operates the external control switch from closing to opening, the lighting state can be kept for a preset period of time