Abstract: A smart identifying apparatus is portable and a user can carry the smart identifying apparatus to different regions. The smart identifying apparatus includes a motion detecting circuit, a communicating circuit and a processing circuit. The motion detecting circuit detects motions for a user. The communicating circuit has an effective wireless communication distance, configured to communicate with an IOT gateway via a wireless communication protocol. The processing circuit compares the user motion detected by the motion detecting circuit with a predetermined motion rule, and decides if the communication circuit is controlled to actively generate a notice to communicate with the IOT gateway according to the comparing result.