The present invention relates to an opening and closing malfunction alarming apparatus and method of a plastic greenhouse. According to the present invention, the opening and closing malfunction alarming apparatus comprises: a motor (130) for opening and closing a plastic greenhouse or an insulating cover a current detecting unit (140) for detecting an operating current of the motor when the motor (130) is operated a control unit (120) for operating the motor (130) by checking a preset condition, and for stopping the operation of the motor (130) by recognizing that a malfunction has occurred in an opening and closing amount of the plastic greenhouse or the insulating cover when the current detected by the current detecting unit (140) is determined to be equal to or greater than a preset current value and a malfunction occurrence notification unit (150) for generating an alarm sound by the control unit (120) or informing a crop grower via communications, when the control unit (120) recognizes that the malfunction has occurred in an opening and closing amount of the plastic greenhouse or the insulating cover. According to the present invention, when a plastic greenhouse or an insulating cover is opened and closed, a case in which an amount of winding changes according to a position of winding due to the insertion of a foreign substance is recognized by detecting an operating current of the motor, and the operation of the motor is stopped. Therefore, the damage to a plastic greenhouse or an insulating cover can be prevented. In addition, the occurrence of a malfunction is notified by an alarm sound or a communications method to a crop grower or a manager to allow the crop grower or the manager to take a quick action. Therefore, economic loss of a crop grower can be prevented in advance.COPYRIGHT KIPO 2016본 발명은 비닐하우스의 개폐 이상 경보 장치 및 방법에 관한 것으로, 본 발명은 비닐하우스 또는 보온덮개의 개폐를 위한 모터(130)와, 상기 모터(130)의 작동 시에 그 모터의 동작전류를 검출하는 전류검출부(140)와, 미리 설정된 조건을 확인하여 상기 모터(130)를 작동시키며 상기 전류검출부
