Abstract: As the interprovincial generation rights trading being just at early\|stage, the corrected index of coal\|consumption in interprovincial generation rights mechanism is proposed based on the difference of coal transportation cost caused by unbalanced distribution of primary energy and characteristics of interprovincial generation rights that influence generation cost. Then the trade model of interprovincial generation rights is built based on the minimization of corrected comprehensive coal\|consumption. Taking the interprovincial generation rights trading in central China power grid as an example, simulation results verify that the proposed model has better suitability than that of traditional coal\|consumption minimization model, which will bring bigger economic profit, and is reference to the mechanism of interprovincial generation rights trading.