According to the generalized distance minimum principle, a selecting model for the optimal evaluation method is built.Based on the model, the rough set theory is taken to be more suitable than the entropy for Province of Hebeis energy structure to low carbon in 2001-2012.Evaluation results show that Hebeis energy structure to low carbon is mainly reflected comprehensively by SO2 emissions, carbon productivity, energy intensity, proportion of renewable energy consumption and GDP growth rate, etc.Additionally, a environmental thought "treatment after pollution", as well as an imbalance between energy planning and economic development results in Hebeis energy structure to low carbon has fluctuated greatly in recent years.Therefore, Hebeis energy structure adjustment to low carbon should make the socioeconomic benefits as priority, the energy planning benefits as aooroaches, and pay attention to environmental benefits, so as to transform the economic development in a fashion from a "fast and good development" to a "good and fast development".