There are three complex controversies of romanization in Taiwan: thehistoric wrinkles between the Phonetic Symbols and romanization, thedilemma between type A pinyin and type B pinyin, the conflict between the worldwide superior complex of the Hanyu Pinyin of the PRC and the sovereignty of Taiwan. This article discusses these three controversies, especially the dilemma between type A pinyin and type B pinyin including "All type A ", "All type B ", "type A and type B incompatibility" and "type A and type B compatibility", Finally, five kinds of meanings of"Tongyong" are discussed.