Abstract: In view of light oil evaporation and emissions during storage and transportation of oil, research ideas and research results of light oilevaporation and emissions are described in order to provide a foundation design basis to the reduction of light oil evaporation loss anddevelopment of oil and gas recovery technology. On this basis, basic methods and principles of light oil emission control are discussed and light oil recovery technology is taken as the basic measure to control evaporation loss. In this paper, status quo and research emphases in light oil recovery evaluation systems are summarized, research status quo and advantages/disadvantages of the soak-up, absorption, condensation, and membrane methods and other light oil recovery technologies are compared systematically as well as the research highlight in light oil recovery technologies and development directions in light oil recovery integration process are proposed. Finally, it is recommended that the development and generalization for light oil recovery technologies should be made through laws and regulations, economic subsidies and other approaches.