Elevator with function of escaping upon failure

The present invention relates to an elevator with a function of escaping upon failure. This elevator includes a lift car, a car door, and a variable frequency controller. The lift car is provided with a rescue detecting device. When the elevator malfunctions, whether there is someone being trapped can be detected through the rescue detecting device. If there is someone being trapped, the variable frequency controller can automatically start emergency rescue operation mode, control the lift car to move to the door are, and output instruction of opening the door. The car door drives the landing door to open at the same time such that the trapped person can escape safely.