The invention discloses a protection structure of a lamp switch, and belongs to the field of an LED (Light Emitting Diode) lamp. The protection structure of the lamp switch comprises a light source module, an electric source module and at least two electric incoming lines, the output end of the electric source module is connected with the light source module; the protection structure further comprises a switch protector which is arranged between the electric source module and the electric incoming lines. According to the protection structure of the lamp switch, the normal operations of the light source module and the electric source module of the lamp can be effectively protected.