Abstract: To establish a nonlinear model between the diesel consumption of transport trucks in open-pit mine and its main external influence factors，the support vector regression (SVR）method is adopted，and the statistical data of actual production and dispatcher in a domestic open-pit coal mine are taken as original samples.With selection of output，volume，distance，height，loading time，fuel up amount，rock volume as seven main external indexes，and by using the factor analysis method to extract common factors as the input of the model，the training process of diesel consumption model is analyzed to make the simulation training through programming the corresponding program in MATLAB and finally get the diesel consumption model based on SVR.The training and testing results show that：the model can meet the precision requirement，and work well on the diesel consumption calculation and prediction of transportation truck in open-pit mine；This model can provide decision support for reasonable production schedule and guide to reduce the diesel consumption.

Key words: Open-pit mine, Diesel, Support vector machine, Transport distance, Height difference