Based on China's energy industries dealing with climate change and implementing environmental policy,we use synergetic theory to study the coupling and coordination measurement and interactive analysis of energy investment and energy financing. We found that energy investment and energy financing have coercive effects on the climate and environment,and the climate and environment have a binding effect on energy investment and energy financing. Without considering the conditions of climate and environmental protection,the interactions between energy investment and energy financing are yearly declining and its coordinated development is facing challenges. When considering atmospheric pollutants,we found that energy investment and energy financing have low coupling and weak coordination in regions with higher emissions of greenhouse gases. Mining and construction may not be the important causes of territorial atmospheric pollution in composite form. The binding effects of climate and environmental protection policies on energy investment are not strong,but have important influences on energy financing. By comprehensively evaluating the coupling and coordination degree of 30 provinces across China regarding energy investment and energy financing,we found that energy investment and financing are unbalanced,their degree of coupling is not high,and their degree of coordination is weak. There is no resonation or synergy between energy investment and energy financing. We should take more immediate measures to expand financing channels for energy companies to promote energy investment.