The invention provides a portable terminal for position information correction, geographical information providing device and method. The portable terminal comprises: image catching unit for getting the image of surrounding area; image analyzing unit for extracting the geographical information in the image obtained from the image catching unit, transmitting together with the position information based on network to the geographical information providing device; service treatment unit based on the position for transmitting the searched geographical information by the geographical searched information and position information based on the network from the geographical information providing device and correcting the position information based on the network.