A guiding system for positioning a target object, which is capable of guiding a user of a mobile device to the position of the target object comprises an wireless positioning device configured on the target object, a plurality of base stations configured around the target object, a positioning server, and an application software built in the mobile device. The wireless positioning device sends wireless broadcasting signal to the base stations. The base stations measure the intensities of broadcasting signal and then send the broadcasting signal and the intensities to the positioning server. The positioning server calculates a locating area of the target object according to the broadcasting signal and the intensities, and then sends the locating area to the mobile device. The application software displays the locating area of the target object to guide the user of the mobile device to the locating area.
