Present study of the genus Cercospora and its allies of Taiwan includes the taxa of one species of Mycovellosiella, one species of Passalora and seven species of Pseudocercospora namely: Mycovellosiella clerodendri, Passalora Stephaniae, Pseudocercospora boehmeriae, P. callicarpicola, P. clematidis, P. ehretiae, P. gomphrenae, P. solani-torvicola and P. viticis. All of them had been invalidly published by Sawada and they are emended by authors in this paper as new species. Deighton's system has been introduced in this study.