The invention provides a gas load prediction method and device, and the method comprises the following steps: predictinggas load of a to-be-predicted object through a plurality of prediction models, so as to obtain a gas load prediction value corresponding to each prediction model; obtaining a weighting coefficient corresponding to each prediction model based on the information entropy; and obtaining a gas load combination prediction result of the to-be-predicted object according to the gas load prediction value and the weighting coefficient corresponding to each prediction model. According tothe invention, the prediction of the gas load can be conveniently and accurately realized.