The invention discloses a regional power saturation load prediction method and system. The method comprises the following steps of: carrying out correlation analysis on all load influence factors influencing the power load and the power load; determining a load influence factor which can be used as an input variable of the prediction model; carrying out Logistic curve fitting on the load influencefactors by utilizing a Logistic regression model according to historical data, determining a predicted value of the load influence factors, carrying out regional saturation load prediction by utilizing an LSSVM model according to the predicted value, and obtaining an electricity consumption predicted value and a maximum load predicted value; and determining a power saturation period and a saturation scale of the current region according to the power consumption prediction value and the maximum load prediction value. The system comprises a correlation analysis module, a load influence factor prediction value determination module, a saturated load prediction module and a prediction result acquisition module. Through the method and the system, the accuracy of load prediction can be improved,the complexity of load prediction is reduced, and popularization and application are facilitated.