Abstract: Citrus were cultivated greatly in China. The processing of citrus industry produced large amounts of citrus dregs, which polluted the environment. It had become one of the most important bottlenecks that limited the sustainable development of the citrus industry. In this review, the author analyzed and compared the main approaches to deal with citrus dregs at home and abroad, from the view of economic and environmental, including sanitary landfill, active ingredients extraction, citrus dregs drying feed and fermentative production of organic fertilizer. Advantages and disadvantages of different approaches were also detailed. It was concluded that: people produced organic fertilizer by using superior strains as the core, not only made use of effective substance in citrus dregs, but also avoided polluting environment. The process was simple and less cost. In a word, it’s an economic and environmental choice, and could be actually promoted in the application.