Based on the taxonomic system of Platnick in 2004, a total of 11 species of Myrmarachne are recognized from Taiwan. There are 4 species described as new species: M. exilisata sp. nov., M. lanyuensis sp. nov., M. luteopalpis sp. nov., and M. laticorseleta sp. nov., and 3 new records to Taiwan: M. annamita Zabka., 1985, M. edwardsi Berry, Beatty and Proszynski, 1996 and M. kiboschensis Lessert, 1925. And the species published in the past from Taiwan are recovered and redescribed in this study, namely, Myrmarachne formosana (Saito, 1933), Myrmarachne formosicola Strand, 1910 and Myrmarachne inermichelis Bösenberg and Strand, 1906 and Myrmarachne magna (Saito, 1933), and female of Myrmarachne formosana (Saito, 1933) and Myrmarachne formosicola Strand, 1910 are described and illustrated first time. Type specimen of M. formosicola Strand, 1910 was re-examined. We treat Pyroderes formosanus Matsumura, 1911 as a doubtful species. A taxonomic key of Myrmarachne from Taiwan, diagnoses, descriptions, quantitative character values, illustrations, locality records, and distribution maps are presented for the 11 recognized species.