A map information management system comprising: - a dynamic map data management device to generate signed data based on pre-generated dynamic map data, using a dynamic map data secret key, and output the signed data, wherein the pre-generated dynamic map data comprises traffic management information, traffic condition information and/or traffic road environmental information; - a map company exclusive application data management device to obtain the signed data from the dynamic map data management device, confirm authenticity of the dynamic map data, using a pre-received dynamic map data public key (502, 502a) corresponding to the dynamic map data secret key and the signed data obtained from the dynamic map data management device, generate second signed data by a pre-received map company exclusive application data secret key, based on data which is obtained by adding map company exclusive application data, wherein the map company exclusive application data comprises information on shops, information on architectures, information on public facilities and/or information of commercial facilities around roads, as map information to the signed data which has been confirmed to be authentic, and output the second signed data; and - an automotive data management device to obtain the second signed data, confirm authenticity of the second signed data using a pre-received map company exclusive application data public key corresponding to the map company exclusive application data secret key and the second signed data, and generate third signed data (130, 230) to be implemented in a vehicle, by a pre-received automotive company exclusive application data secret key, based on data which is further obtained by adding automotive company exclusive application data, wherein the automotive company exclusive application data comprises map data for automatic driving, as map information to the second signed data which has been confirmed to be authentic, and wherein the third signed data is implemented in an automatic driving vehicle or a car navigation device. - a dynamic map data management device to generate signed data based on pre-generated dynamic map data, using a dynamic map data secret key, and output the signed data, wherein the pre-generated dynamic map data comprises traffic management information, traffic condition information and/or traffic road environmental information; - a map company exclusive application data management device to obtain the signed data from the dynamic map data management device, confirm authenticity of the dynamic map data, using a pre-received dynamic map data public key (502, 502a) corresponding to the dynamic map data secret key and the signed data obtained from the dynamic map data management device, generate second signed data by a pre-received map company exclusive application data secret key, based on data which is obtained by adding map company exclusive application data, wherein the map company exclusive application data comprises information on shops, information on architectures, information on public facilities and/or information of commercial facilities around roads, as map information to the signed data which has been confirmed to be authentic, and output the second signed data; and - an automotive data management device to obtain the second signed data, confirm authenticity of the second signed data using a pre-received map company exclusive application data public key corresponding to the map company exclusive application data secret key and the second signed data, and generate third signed data (130, 230) to be implemented in a vehicle, by a pre-received automotive company exclusive application data secret key, based on data which is further obtained by adding automotive company exclusive application data, wherein the automotive company exclusive application data comprises map data for automatic driving, as map information to the second signed data which has been confirmed to be authentic, and wherein the third signed data is implemented in an automatic driving vehicle or a car navigation device.