Abstract: Continuous，online measurement of atmospheric greenhouse gases is not only an important part of research on global and regional carbon cycle as well as its climatic and environmental effects，but also the basis work of greenhouse gases emission reduction policy making and evaluation on effects of emission reduction in various regions． In this paper，in-situ monitoring methods of atmospheric greenhouse gases were summarized in terms of their principles and applications，and developing trend of greenhouse gas monitoring methods was put forward and discussed，which will provide reference for further development of greenhouse gas monitoring and methodological standardization．