Based on the fact that the supercritical large capacity thermal power generator units' energy consumption level continues to increase in these days, this paper takes Xingyang thermal power plant 2×600 MW units as researching background and presents an optimal load distribution plan based on equal incremental method to reduce the coal consumption of the power plant. First, through summing up the production index of power generator units, the actual coal consumption characteristics of the two units are analyzed, and then considering the constraint conditions such as units start and stop consumption and the output constraints, the equal incremental method is used to optimize the distribution plan and the point-by-point method is used to correct it. After making comparison between this optimal plan and the actual operation records, the result shows that the total coal consumption of the power plant could be reduced by applying this optimal plan, which provides guidance for improving the economical efficiency and environmental protection property of the power station. Moreover, some measures and suggestions are presented to improve the load distribution.