A driving assistance system comprising: a driving information acquisition unit configured to acquire any of an amount of operations by a driver, a vehicle behavior, a state of the driver, and information regarding the environment surrounding a vehicle as driving information; a vehicle location information acquisition unit configured to acquire vehicle location information; a statistical information generation unit configured to generate statistical information by statistically processing the driving information as a time-series pattern; a map information generation unit configured to generate map information by associating the statistical information with the vehicle location information at the time of the acquisition of the driving information; a map update unit configured to update existing map information to the map information generated by the map information generation unit ; a map information reference unit configured to reference and read the map information based on the location information acquired by the vehicle location information acquisition unit ; a driving assistance unit configured to perform driving assistance based on the map information read by the map information reference unit ; and a communication unit configured to transmit and receive information to and from a communication device outside the vehicle, wherein the driving information acquisition unit provides the information acquired by the communication unit to the statistical information generation unit as the driving information for using the information acquired by the communication unit as the driving information. a driving information acquisition unit configured to acquire any of an amount of operations by a driver, a vehicle behavior, a state of the driver, and information regarding the environment surrounding a vehicle as driving information; a vehicle location information acquisition unit configured to acquire vehicle location information; a statistical information generation unit configured to generate statistical information by statistically processing the driving information as a time-series pattern; a map information generation unit configured to generate map information by associating the statistical information with the vehicle location information at the time of the acquisition of the driving information; a map update unit configured to update existing map information to the map information generated by the map information generation unit ; a map information reference unit configured to reference and read the map information based on the location information acquired by the vehicle location information acquisition unit ; a driving assistance unit configured to perform driving assistance based on the map information read by the map information reference unit ; and a communication unit configured to transmit and receive information to and from a communication device outside the vehicle, wherein the driving information acquisition unit provides the information acquired by the communication unit to the statistical information generation unit as the driving information for using the information acquired by the communication unit as the driving information. <EOS>