The aim of the research was to identify the role of accounting in improving the environmental efficiency of seasonal exhibitions and markets (an applied study on the markets of the General Federation of Chambers of Commerce and the Giza Governorate Chamber), as well as to identify the concept of environmental efficiency, its dimensions, and its most important mechanisms and obstacles, as well as to develop mechanisms to improve the environmental efficiency of seasonal marketing exhibitions. To achieve the objectives of the research, a questionnaire was designed and distributed to the study sample of officials and accountants of accounting systems, as well as officials and specialists in occupational safety and health, in the General Federation of Chambers of Commerce in Giza. The study results revealed that there is a statistically significant correlation between the effectiveness and role of accounting and improving the environmental efficiency dimensions of seasonal marketing exhibitions. Considering the results of the study, several recommendations were concluded, the most important of which are: activating the role of accounting in environmental affairs to improve the environmental efficiency of markets and exhibitions affiliated with the Chamber of Commerce, as well as working to develop environmental management, occupational safety, and health management to improve the efficiency of environmental performance of markets and safe handling of waste.