Electricity price prediction method and device, equipment and medium

The invention relates to the technical field of electricity price prediction, and provides an electricity price prediction method and device, equipment and a medium, and the method comprises the steps: obtaining historical electricity price data and a to-be-predicted target day; selecting at least one target historical day similar to the to-be-predicted target day according to the similarity between the to-be-predicted target day and the historical day; fitting the electricity price data of each target historical day by using a piecewise linear regression model to obtain a plurality of prediction models; and predicting the electricity price of the to-be-predicted target day by using each prediction model in the plurality of prediction models to obtain a final predicted electricity price corresponding to the to-be-predicted target day. Through the technical scheme, the accuracy of electricity price prediction can be ensured. 本申请涉及电价预测技术领域，提出了一种基于电价预测方法、装置、设备及介质，其中，方法包括：获取历史电价数据和待预测目标日；根据所述待预测目标日与历史日的相似度，选取出至少一