The invention discloses a flash-off switch on-off detection circuit and electronic equipment, and belongs to the technical field of flash-off switches. The flash-off switch on-off detection circuit comprises an on-off detection module and a control module. The input end of the on-off detection module is connected with a power supply through a flash-off switch, the on-off detection module is used for obtaining a detection electric level according to an electromagnetic signal of input current radiation, and the detection electric level is a digital signal; and the input end of the control moduleis connected with the output end of the on-off detection module to receive the detection electric level, and on-off state changing of the flash-off switch is judged according to the detection electric level.