介绍了负荷预测的特点以及影响预测负荷准确度的成分，并通过实际数据曲线形象地对其周期性、趋势性和节假日负荷的特点以及温度、湿度等影响因素进行分析。(This paper introduces the characteristics of load forecasting and the components that affect the accuracy of forecasting load, and analyzes its periodicity, trend and holiday lo