A location information sharing system provided in a vehicle, the system comprising: an emergency call system and a navigation system, wherein the emergency call system comprises: a first initial location calculation unit configured for generating a first initial location by receiving a global navigation satellite system (GNSS) or a global positioning system signal transmitted from a GNSS or GPS satellite, a first compensation location calculation unit configured for generating a first compensation location compensated from the first initial location, a first transmitting/receiving unit configured for receiving a second initial location and a second compensation location transmitted from the navigation system, and a first control unit configured for outputting one location information of the first initial location, the first compensation location, the second initial location, and the second compensation location, and wherein the navigation system comprises: a second initial location calculation unit configured for generating the second initial location by receiving a GNSS, or a GPS, signal transmitted from the GNSS or GPS satellite, a second compensation location calculation unit configured for generating the second compensation location compensated from the second initial location, a second transmitting/receiving unit configured for receiving the first initial location and the first compensation location transmitted from the emergency call system, and a second control unit configured for outputting one location information of the first initial location, the first compensation location, the second initial location, and the second compensation location. an emergency call system and a navigation system, wherein the emergency call system comprises: a first initial location calculation unit configured for generating a first initial location by receiving a global navigation satellite system (GNSS) or a global positioning system signal transmitted from a GNSS or GPS satellite, a first compensation location calculation unit configured for generating a first compensation location compensated from the first initial location, a first transmitting/receiving unit configured for receiving a second initial location and a second compensation location transmitted from the navigation system, and a first control unit configured for outputting one location information of the first initial location, the first compensation location, the second initial location, and the second compensation location, and wherein the navigation system comprises: a second initial location calculation unit configured for generating the second initial location by receiving a GNSS, or a GPS, signal transmitted from the GNSS or GPS satellite, a second compensation location calculation unit configured for generating the second compensation location compensated from the second initial location, a second transmitting/receiving unit configured for receiving the first initial location and the first compensation location transmitted from the emergency call system, and a second control unit configured for outputting one location information of the first initial location, the first compensation location, the second initial location, and the second compensation location. a first initial location calculation unit configured for generating a first initial location by receiving a global navigation satellite system (GNSS) or a global positioning system signal transmitted from a GNSS or GPS satellite, a first compensation location calculation unit configured for generating a first compensation location compensated from the first initial location, a first transmitting/receiving unit configured for receiving a second initial location and a second compensation location transmitted from the navigation system, and a first control unit configured for outputting one location information of the first initial location, the first compensation location, the second initial location, and the second compensation location, and wherein the navigation system comprises: a second initial location calculation unit configured for generating the second initial location by receiving a GNSS, or a GPS, signal transmitted from the GNSS or GPS satellite, a second compensation location calculation unit configured for generating the second compensation location compensated from the second initial location, a second transmitting/receiving unit configured for receiving the first initial location and the first compensation location transmitted from the emergency call system, and a second control unit configured for outputting one location information of the first initial location, the first compensation location, the second initial location, and the second compensation location. a second initial location calculation unit configured for generating the second initial location by receiving a GNSS, or a GPS, signal transmitted from the GNSS or GPS satellite, a second compensation location calculation unit configured for generating the second compensation location compensated from the second initial location, a second transmitting/receiving unit configured for receiving the first initial location and the first compensation location transmitted from the emergency call system, and a second control unit configured for outputting one location information of the first initial location, the first compensation location, the second initial location, and the second compensation location.