The present invention relates to a re-positioning reminder for personal portable electronic equipment. Such a reminder is housed in the electronic equipment and is at least equipped with an environment detecting unit, a control unit, a time counting module and at least one vibration/ringing circuit; wherein the environment detecting unit is used to monitor the outer surroundings and generates a monitoring value; the control unit is coupled to the environment detecting unit for the reception of the monitoring value which is compared with a preset value in the control unit to check if the environment is in a normal state or not and keeps the time counting module under its control; the time counting module is connected to the control unit and can start a time countdown according to the preset time; the vibration/ringing circuit is connected to the control unit and is controlled by the control unit to send off an alarm at the termination of the time countdown procedure to remind a user to put a personal portable electronic equipment back to a preset place so as to prevent the same from being lost as a result of ignorance.