The invention provides a transformer substation data statistics method and system, and the method comprises the steps of carrying out the primary filtering of the obtained transformer substation remote signaling deflection information, and obtaining abnormal data and normal data; performing secondary filtering on the normal data to obtain abnormal operation state data, normal operation state data,misoperation data and non-misoperation data; and counting the abnormal data, abnormal operation state data, maloperation data, normal operation state data and non-maloperation data respectively, sothat the operation and maintenance personnel are helped to find and eliminate potential defects and potential safety hazards of equipment or system functions more visually and timely, and the intelligent level and the safe operation capability of a transformer substation are improved.