Mandarin Chinese spoken in China and Taiwan. However, there are differences in emphasis, and that Taiwan is likely to depart from China, there are differences in language. Another important point is the use of dialect Fookienese. Most Chinese who migrated to Taiwan in the same province. So sometimes you can hear and speak Taiwanese, but you certainly can speak Mandarin.
Added a note for me when I hear my impression that the Chinese language Fookien a little more formal hearing in comparison. even though both have the same structure of written language (except that the characters used in China has been revised to be simple), mandarins (is monosyllabic), talked almost always 1 syllable per character, while Fookien can There are some signs 2-spoken as one or three syllables. Weeny bit like mixing a little Japanese to Mandarin, if you listen Fookien.