Abstract: The ductile shear zone in Dagujia Town, Qingyuan, northern Liaoning Province, is located in the eastern part of the northern margin of North China Craton, which records the superposition and transformation of the Paleo-Asian Ocean and Paleo-Pacific tectonic domains. The ductile shear zone is mainly composed of granitic rocks and was formed by a compressional deformation event. The rocks have strong ductile deformation with NW-SE-trending foliation and SE-trending mineral stretching lineation, and exhibit NW-trending sinistral strike-slip shear characteristics. Mineral deformation behavior and quartz EBSD fabrics show a high-temperature deformation style with deformation temperatures ranging from 550 ~ 650 °C, corresponding to the conditions of hornblende facies in the mid-depth crust. The zircon U-Pb geochronology results show that the granitic rocks in the ductile shear zone were formed in the Middle Triassic (239.9–237.6 Ma), Late Triassic (225.6–220.1 Ma), Early-Middle Jurassic (179.6–167.4 Ma) and Late Jurassic (160.1–155.3 Ma). The Triassic magmatism may be related to continuous orogeny and post-orogenic extension after the closure of the Paleo-Asian Ocean. The Jurassic magmatism is associated with subduction of the Paleo-Pacific Plate. In addition, an undeformed coarse-grained granite (116.6 Ma) was found. Combined with the existing research results in the region, the deformation age of the ductile shear zone in Dagujia Town is defined as Late Jurassic (155–145 Ma). The compressional stress caused by the subduction of the Paleo-Pacific Plate is the main cause of rock deformation in the region.