The invention discloses a wireless remote control power-stealing detector, which consists of a master control central processing unit (CPU), a crystal oscillation circuit, a reset circuit, a communication interface circuit, a buzzer control circuit, a keyboard control circuit, a liquid crystal display circuit, a power circuit, a wireless data transmitting circuit and a wireless data receiving circuit. A remote control transmitting code can be generated under normal remote control frequency according to remote control transmitting parameters which are preset by detection personnel and is automatically and sequentially transmitted, when an illegal remote control receiving device in a power-stealing electricity meter receives a matched code, the action is performed, the operation of the electricity meter is stopped or started, and the detection personnel can discover the power-stealing electricity meter, so that a remote control power-stealing behavior is effectively forbidden; and meanwhile, an ambient abnormal remote control transmitting device can be automatically scanned in a standby monitoring mode, abnormal wireless data transmitted by the abnormal remote control transmitting device into air is decoded, various technical parameters of the abnormal remote control transmitting device can be timely and effectively discovered, and a technical support is provided for preventing from stealing power in a remote control mode.