|Abstract:Report about Early Precambrian rock records is few at Songnen Massif and its surrounding area, located in the eastern Xing-Meng Orogenic Belt. In this paper, authors study geochronology and geochemistry of cataclasitic granite from Daquanzi Village in Longjiang Country, Heilongjiang Province. Results show that the granite, having a concordia 207Pb/206Pb age of 2579±15 Ma(n=20, MSWD=0.49) using zircon LA ICP MS U-Pb method, was crystallized at late Neoarchean, and belongs to soda-rich granite, with the characteristics of trondhjemite, TTG. The finding of Neoarchean granite is the first report at Songnen Massif and its surrounding area, and confirms that early Precambrian geologic record is existed at Longjiang area, contributing to seek for Neoarchean TTG. This finding indicates that, in Songnen Massif and its surrounding area, there is Neoarchean magmatic activity not only Paleoproterozoic, providing a basis for source of mass Neoarchean detrital orginal zircons. This study provides new materials for the researches of remaining early geological records and geotectonic framework of Xing-Meng Orogenic Belt.