The invention discloses a method for calibrating a geographic position of a power transmission line rod tower model. For solving the existing problems of incomplete data, inaccurate data and the like of geographic position information of a power transmission line rod tower, externally connected from the outside of a dispatching automation system, of the system, the confidence degree of the geographic position of the power transmission line rod tower is calculated, errors and missed geographic position information in the power transmission line rod tower model are amended and supplemented and credible line rod tower model geographic position data is provided for power grid risk assessment and prevention and control research under natural disasters by adopting the method for calibrating the geographic position of the power transmission line rod tower model.