An information transmission method in an Intelligent Transport System, ITS, wherein the method comprises: receiving, by a first base station, uplink information sent by at least one first vehicle user equipment, wherein the uplink information comprises at least one piece of first information, the first information comprises indication information, the indication information is used to indicate whether the first information is global information or local information, wherein global information comprises information which is used by the entire ITS and wherein local information comprises information which is used by vehicles within coverage of a base station, and wherein the at least one first vehicle user equipment is in a communications cell covered by the first base station; determining (S 102), by the first base station according to the indication information, whether the at least one piece of first information is global information or local information; and if the first base station determines that the at least one piece of first information is local information, sending the at least one piece of first information to a second vehicle user equipment in the communications cell covered by the first base station and/or sending, by the first base station, the at least one piece of first information to a second base station, wherein the second base station is a base station that is in a preset neighboring cell list and that has a neighboring relationship with the first base station to deliver the at least one piece of first information to a third vehicle user equipment, wherein, if there are multiple pieces of first information, the first base station aggregates the pieces of first information that have identical content before the sending; or if the first base station determines that the at least one piece of first information is global information, sending, by the first base station, the at least one piece of first information to a core network device. receiving, by a first base station, uplink information sent by at least one first vehicle user equipment, wherein the uplink information comprises at least one piece of first information, the first information comprises indication information, the indication information is used to indicate whether the first information is global information or local information, wherein global information comprises information which is used by the entire ITS and wherein local information comprises information which is used by vehicles within coverage of a base station, and wherein the at least one first vehicle user equipment is in a communications cell covered by the first base station; determining (S 102), by the first base station according to the indication information, whether the at least one piece of first information is global information or local information; and if the first base station determines that the at least one piece of first information is local information, sending the at least one piece of first information to a second vehicle user equipment in the communications cell covered by the first base station and/or sending, by the first base station, the at least one piece of first information to a second base station, wherein the second base station is a base station that is in a preset neighboring cell list and that has a neighboring relationship with the first base station to deliver the at least one piece of first information to a third vehicle user equipment, wherein, if there are multiple pieces of first information, the first base station aggregates the pieces of first information that have identical content before the sending; or if the first base station determines that the at least one piece of first information is global information, sending, by the first base station, the at least one piece of first information to a core network device.