A safety circuit device for an elevator, comprising: a first safety circuit including at least one first safety switch, for detecting an abnormal state based on opening of the at least one first safety switch to generate a car stop command to a brake device; a second safety circuit including at least one second safety switch, for detecting the same type of abnormal state as the abnormal state detected by the first safety circuit based on opening of the at least one second safety switch to generate a car stop command to the brake device; characterized by comprising further: a failure detecting section for detecting faulty opening corresponding to the opening of the at least one first safety switch due to a failure based on a state of the at least one first safety switch and a state of the at least one second safety switch; and a switching device for connecting the first safety circuit to the brake device and disconnecting the second safety circuit from the brake device at normal time and for switching a circuit to be connected to the brake device from the first safety circuit to the second safety circuit when the faulty opening is detected by the failure detecting section, wherein a circuit switching time period by the switching device is set shorter than a time period from the opening of the at least one first safety switch to start of a braking operation of the brake device, corresponding to a brake contactor cutting off a brake coil current, the brake coil, in an energized state, separating a brake shoe from a brake drum. a first safety circuit including at least one first safety switch, for detecting an abnormal state based on opening of the at least one first safety switch to generate a car stop command to a brake device; a second safety circuit including at least one second safety switch, for detecting the same type of abnormal state as the abnormal state detected by the first safety circuit based on opening of the at least one second safety switch to generate a car stop command to the brake device; characterized by comprising further: a failure detecting section for detecting faulty opening corresponding to the opening of the at least one first safety switch due to a failure based on a state of the at least one first safety switch and a state of the at least one second safety switch; and a switching device for connecting the first safety circuit to the brake device and disconnecting the second safety circuit from the brake device at normal time and for switching a circuit to be connected to the brake device from the first safety circuit to the second safety circuit when the faulty opening is detected by the failure detecting section, wherein a circuit switching time period by the switching device is set shorter than a time period from the opening of the at least one first safety switch to start of a braking operation of the brake device, corresponding to a brake contactor cutting off a brake coil current, the brake coil, in an energized state, separating a brake shoe from a brake drum. a failure detecting section for detecting faulty opening corresponding to the opening of the at least one first safety switch due to a failure based on a state of the at least one first safety switch and a state of the at least one second safety switch; and a switching device for connecting the first safety circuit to the brake device and disconnecting the second safety circuit from the brake device at normal time and for switching a circuit to be connected to the brake device from the first safety circuit to the second safety circuit when the faulty opening is detected by the failure detecting section, wherein a circuit switching time period by the switching device is set shorter than a time period from the opening of the at least one first safety switch to start of a braking operation of the brake device, corresponding to a brake contactor cutting off a brake coil current, the brake coil, in an energized state, separating a brake shoe from a brake drum.