Abstract:Corynespora cassiicola is an important plant pathogenic fungus, with a wide host rang of more than 530 plant species. The epidemic outbreaks of Corynespora leaf spot occurred to many crops such as rubber and some vegetables, and brought out a severe influence on the crops production. The progress of researches on C.cassiicola involving taxonomy status and characteristics are summarized in this paper. Researches on genetic diversity and toxin-structure of C.cassiicola in recent years were introduced in detail. Also, the current achievements and problems, on the diagnosis and control of Corynespora leaf spot were summarized. At last, the etiology and control of this pathogen in China were prospected.