With the main influential factors on electric power load,the weekday and weather considered,a load forecasting model based on genetic algorithm and BP is constructed.Considering that the number of nevre cells in hidder layer,initial weight and unit's bias value are the most important acftors factors to the foercasti percision of ANN,genetic algoritbm is used to choose a more reasonable frame of ANN.Genetic algorithm is good for deciding the proper fabric of net,and helping the ANN to conquer its disfigureme...