The present invention provides a charging control method, charging monitoring control center and vehicle-mounted navigation device of electric automobiles. For obtaining the balance of supply and demand of electricity in an electric system, needed electric automobiles are guided to charging stations in needed time, and the charging of the electric automobiles of the charging stations can be controlled. For distributing total charging electricity consumed by the charging stations within electricity distribution areas planned by an electricity system monitoring control system to the electric automobiles charged by the charging stations to consume, the charging monitoring control center is used for collecting the electric automobiles charged in the charging stations for driving electric automobiles, and through distributing the total charging electricity to the chosen electric automobiles from the collected electric automobiles, charging amount giving to the electric automobiles can be decided. The electric automobiles are respectively guided to the charging stations, and the charging electricity of the electric automobiles of the charging stations are respectively controlled.