To provide a location searching system which can rapidly and easily search a person having a danger of an attack in the case of falling down when outgoing, search a wanderer or search a missing person in an earthquake disaster and simultaneously monitor the living body state of a person to be monitored.

The person-to-be-searched side unit 10 of a location searching system detects the position of itself from the radio wave from a GPS artificial satellite 13, and transmits the positional information to the searcher side units 11, 12 by radio communication. The units 11, 12 display the information together with a map. Further, the units 11, 12 also have the functions of receiving the radio wave oscillated by the unit 10 and tracking it. The system can also abruptly grasp the abrupt change of the body state of the object to be detected including life or death by using together with the living body state monitoring function.