A prediction is made concerning Chinas total energy consumption from 2011 to 2015 based on unconstrained and constrained programming respectively,satisfying the condition that the overall energy consumption is to be controlled under 4.1 billion tons of standard coal and new energy will account for 11.4%of the total till 2015.Then,the prediction of Chinas energy consumption structure in the same period with and without constraints is followed by employing Markov transition matrix and its correction model.Finally,the coal consumption is predicted and further compared between the one with constraints and that without constraints.