Handan is one of the most air-polluted cities in our country,and it is necessary to make an adjustment of the energy structure.This paper takes Handan as an example,based on the analysis result of PM 2.5 sources,applying the "externality","the tragedy of the commons" theories,analyzes in detail the motivation in adjusting the energy structure to control the air pollution.It explores the prospect,applicable means and methods in utilizing and popularizing the clean energy.The result sets a model and a guide for cities within and outside Hebei province.