The utility model discloses an emergency system of an automobile steering lamp. The backlight module comprises a light guide strip and a light source located at the incident end of the light guide strip. The light guide strip comprises two or more incident ends and an emergent end. wherein each incident end is communicated with the emergent end, each incident end of the light guide strip is provided with an independent light source, one light source is used as a main steering lamp light source, the other light sources are used as standby steering lamp light sources, each light source is packaged on a circuit board, and a radiator is arranged on the back surface of the circuit board; the main steering lamp light source is connected with the fault self-diagnosis module, the signal output endof the fault self-diagnosis module is connected into the signal input end of the vehicle body controller, and the signal output end of the vehicle body controller is in control connection with all the light sources, the vehicle instrument and the loudspeaker. When the main steering lamp light source fails, the standby emergency steering lamp system is started, and the safe driving performance ofthe vehicle is improved.