The invention relates to a passenger elevator entering key failure fault identification method. The method comprises the steps that S1, door state data, person existence data, running static data and elevator video data of an elevator are collected; S2, elevator key fault time periods are obtained according to the door state data, the person existence data and the operation static data; and S3, elevator video data corresponding to the elevator key fault time periods are selected, non-elevator key fault filtering is carried out, and finally whether elevator key faults exist or not is output. According to the passenger elevator entering key failure fault identification method, the failure fault of the elevator key can be effectively identified, the identification speed is high, and the precision is high.