Abstract: As an important strategic non−metallic mineral resource, graphite is widely used in national economic construction and emerging industries, among which flake graphite has become the focus of research due to its excellent surface properties and physical and chemical properties. The application value of flake graphite depends on the size and grade of flakes, so the size protection and carbon content improvement of flakes during beneficiation processing are of great significance for its application. This paper elaborates on the effects of crushing methods such as ball milling, stirring milling, vibration milling and high−pressure roller grinding on large flake crushing around flake graphite, and on this basis, summarizes the dissociation mechanism of flake graphite and its scale size protection mechanism in recent years, and puts forward the future development direction. At the same time, the research status of enhanced recovery process of large flake graphite is summarized, which provides new ideas and useful references for the processing and sorting of flake graphite minerals.