The increase of greenhouse gases concentration in the atmosphere has been considered as the result from both natural and anthropogenic factors. Volcanic-geothermal fields,mud volcano systems and oil-gas fields,and also active deep fault systems are the main origins of geological greenhouse gases. Under the context of global warming,the quantitative studies on contribution of geological sources to rising of concentrations of the atmospheric greenhouse gases are critical to discriminating deep-carbon emissions associated with natural and anthropogenic factors and to accumulating essential data for geological deep-carbon budget. In this study,characteristics of geological sources(e.g.,volcanic-geothermal fields,mud volcano systems and oil-gas fields,and active and deep fault structure systems) of greenhouse gas emissions were briefly reviewed. On this basis,recent studies on fluxes and origin of greenhouse gases emitted from Cenozoic volcanic fields in China were summarized. Furthermore,the potential application of greenhouse gas observation and emitted fluxes measurements in the volcanic fields was evaluated for monitoring active volcanic activities in China.