The article presents the results of the discovery and text-critical analysis of the Mongolian language “golden” manuscript fragments brought to Russia and Europe from Dzungaria in the 18th century. At present 34 fragments have been detected in various depositories. The fragments belong to one set of the Mongolian Kanjur most likely dated from the first half of the 17th century. The list of the texts, to which the fragments belong, is given at the end of the article. The text-critical analysis of the fragments reveals that they contain a plethora of preclassic orthography and spelling of loanwords. Three fragments contain the text of the hitherto unknown Mongolian version of the Bhadrakalpika-sūtra, which differs from Dayičing Tayiǰi’s translation included in the bulk of the Mongolian Kanjur copies.