A traffic information processing method includes obtaining, by a first traffic control unit, a traffic application type and first traffic information of a traffic target object, determining an interaction coverage area based on the traffic application type and the first traffic information of the traffic target object, determining, by the first traffic control unit, a second traffic control unit based on the interaction coverage area and a management area of a traffic control unit known to the first traffic control unit, and sending the first traffic information of the traffic target object to the second traffic control unit, where there is an overlapping area between a management area of the second traffic control unit and the interaction coverage area.