In recent years, air pollution in China has become a serious problem, so atmospheric environment is attached more and more attention to and atmospheric environment impact assessment is requested to be in good quality. Therefore, it is significant to introduce new, more comprehensive, finer technique into atmospheric environment impact assessment according to recent scientific progresses in sciences. We introduce a few methods including footprint function method, 4 dimensional flux method, source apportionment method and animation demo that have been used in our work in this paper according to the guideline on environment impact assessment technique, and describe the theory and application. With the models recommended in the guideline of atmospheric environment impact assessment, these methods can be used to study deeply the movement and distribution of the air pollutants from different aspects. We can choose reasonable methods to carry out the study and evaluation on atmospheric environment considering the real problem during atmospheric environment impact assessment.