Internal contracting brake fail protecting method and internal contracting brake fail protecting device

The invention relates to the field of elevators, and discloses an internal contracting brake fail protecting method and an internal contracting brake fail protecting device. The internal contracting brake fail protecting method comprises the step of controlling a car to run to a safe area under the condition that the speed of the car is gradually reduced when an internal contracting brake is failed. By the method, an elevator can enter a safe state as soon as possible when the internal contracting brake fails.