The continuous deepening of social development urbanization and industrialization also leads to the organic waste gas produced in a large number of human activities,which seriously affects the ecological environment and the quality of human life.In the field of environmental engineering,organic waste gas treatment has become an important research direction.The fine and in-depth treatment of organic waste gas is an important requirement of atmospheric and natural ecological environment protection and management proposed in the"14th Five-Year Plan".In this context,it is necessary to further explore and analyze the practical application of organic waste gas treatment technology in the field of environmental engineering,continuously improve the effect of organic waste gas treatment,respond to the national strategic development requirements,and promote the realization of green and sustainable development goals.This paper summarizes the composition、source,characteristics and harm of organic waste gas,summarizes the practical application points of organic waste gas treatment technology in environmental engineering,and mainly discusses the practical application of various organic waste gas treatment technologies.