LA-ICP-MS zircon U-Pb dating and geochemical data for the Late Paleozoic volcanic rocks from eastern and southeastern margins of the Jiamusi Massif are presented to understand the regional tectonic evolution. Zircons from eight representative volcanic rocks are euhedral-subhedral in shape and dis- play striped absorption and fine-scale oscillatory growth zoning as well as high Th/U ratios (0.33―2.37), implying a magmatic origin. The dating results show that the Late Paleozoic volcanic rocks in the study area can be divided into two stages, i.e., the Early Permian (a weighted mean 206Pb/238U age of 288 Ma) and the Middle Permian volcanisms (a weighted mean 206Pb/238U age of 268 Ma). The former is com- posed mainly of basalt, basaltic-andesite, andesite and minor dacite. They are characterized by low SiO2 contents, high Mg# (0.40―0.59), enrichment in Na (Na2O/K2O = 1.26―4.25) and light rare earth elements (LREEs), relative depletion in heavy rare earth elements (HREEs) and high field strength ele- ments (HFSEs), indicating that an active continental margin setting could exist in the eastern margin of the Jiamusi Massif in the Early Permian. The latter consists mainly of rhyolite and minor dacite with high SiO2 (77.23%―77.52%), low MgO (0.11%―0.14%), enrichment in K2O (Na2O/K2O ratios < 0.80) and Rb, Th, U and depletion in Eu, Sr, P and Ti, implying a crust-derived origin. Therefore, it is proposed that the Middle Permian volcanic rocks could have formed under the collision of the Jiamusi and the Khanka Massifs. LA-ICP-MS zircon U-Pb dating and geochemical data for the Late Paleozoic volcanic rocks from eastern and southeastern margins of the Jiamusi Massif are presented to understand the regional tectonic evolution. Zircons from eight representative volcanic rocks are euhedral-subhedral in shape and dis- play striped absorption and fine-scale oscillatory growth zoning as well as high as Th / U ratios (0.33-2.37), implying a magmatic origin. The dating results show that the Late Paleozoic volcanic rocks in the study area can be divided into two stages, ie, the Early Permian (a weighted mean 206 Pb / 238 U age of 288 Ma) and the Middle Permian volcanisms (a weighted mean 206 Pb / 238 U age of 268 Ma). The former is com- posed mainly of basalt, basaltic-andesite , andesite and minor dacite. They are characterized by low SiO2 contents, high Mg # (0.40-0.59), enrichment in Na (Na2O / K2O = 1.26-4.25) and light rare earth elements (LREEs), relative depletion in heavy rare earth elements (HREEs) and high fie The latter consists mainly of rhyolite and minor dacite with high SiO2 (77.23% -77.52%). , low MgO (0.11% -0.14%), enrichment in K2O (Na2O / K2O ratios <0.80) and Rb, Th, U and depletion in Eu, Sr, P and Ti, implying a crust-derived origin. Thus, it is proposed that the Middle Permian volcanic rocks could have formed under the collision of the Jiamusi and the Khanka Massifs.