This present article consists of two sections. In the first section, the wrong transliterations of the geographical names in China among the names of an index of Mongolian geographical names which were transliterated into the Cyrillic script in a publication called “Yesterday’s Traces of the Mongols”- a Comparison of Ancient and Contemporary Geographical Names by Inner Mongolian researcher Altanshaa were identified and corrected. In the second section, some wrong transliterations of Chinese syllables into the Cyrillic script in the “Rules for Transliterating Chinese Syllables” approved in 2016 were also corrected and the reasons for such mistakes were discussed.