High-risk event early warning method and system based on power grid customer service data

The invention relates to a high-risk event early warning method and system based on power grid customer service data. The early warning method comprises the following steps: obtaining repair work order data; when the accumulated value of the uncompleted repair work orders of each station area exceeds a first threshold value, marking the station area as a high-risk station area and a high-risk work order; if the urged frequency data of the single work order exceeds a second threshold value, marking the single work order as a high-risk work order; if the power restoration progress in the power restoration work order exceeds a third threshold value, power restoration is still not carried out, and the work order is marked as a high-risk work order; and monitoring an incoming call urging condition after the same customer requests repair, and when the interval between the urging time and the repair time of the customer exceeds a fourth threshold value, marking the work order as a high-risk work order. The power rec