A navigation system and method are applied in a predetermined space in which a plurality of control points is defined. The navigation method comprises the steps of: installing a plurality of control point RFID tags near the entrance to every control point-controlled lane, wherein each control point RFID tag is stored with data thereof; reading the data stored in the RFID tags; determining, in light of the read data, a direction or a distance one should preferably go from a current location; and indicating the determined direction or the determined distance, using an indicating device.