To provide a device for confirming a position with which the position of baggage such as a portable telephone and hand baggage can be simply con firmed and mislaying, loss, a burglary or the like of baggage can be prevented.

A device for confirming a position comprising a main station 1 and a sub station 2 each accommodated in a portable cases 8 and 8A, wherein each of the main station 1 and the sub station 2 contains microcomputers 10 and 12 housing a pair of ID numbers, the main station 1 transmits a high frequency signal with piled up ID numbers at a certain interval, the sub station 2 repeats ID number collation every certain cycle if it receives the high frequency signal to recognize an ID number, and there goes a buzzer or speaker 13, which is contained, if exceeding the receiving range for the high frequency signal.