The Smart Anti-wandering System provides alerts to the caretakers when the residents with the RFID tags are detected at the exits preventing them from wandering and leaving the premises under unattended situation. Each tag has a unique ID for identifying the residents. No battery is required for the tag that make it machine washable and dry-able. In addition to the standard components, the system can be bundled with different kind of sensors including motion sensor, door switch sensor, proximity sensor, etc. for customized solution to make sure the system fits into different installation environment and reduces false alarm. With different options of alarm systems like PA system, walkie-talkie system and mobile App, alarm can be received by caretakers timely and accurately, the risk of missing case can be greatly minimized.