Abstract：Orogenic gold deposits were formed in the subduction—accretion or collision period on the convergent plate margin. Currently，it is one of the hottest topics in economic geology researches. Numbers of orogenic deposits have been discovered in the western Junggar，however，the geodynamic setting and timing of the deposits are poorly constrained. In this paper，we aim to figure out the evolution and mechanism of the mineralization，and provide constrains for the geodynamic settings. Located on the northwestern side of the Dalabute fault，the orogenic gold deposits in the western Junggar are hosted in the Carboniferous Metamorphic volcanic sedimentary rock or metamorphic ophiolite and controlled by the NW or/and EW- secondary faults that related to the Dalaubute fault event. The fluid inclusions are characterized by the presence of dominant CO2and minor CH4fluid，with metallogenic stages yield total homogenization temperatures of 170~380 ℃. The oxygen and hydrogen isotope compositions of water from fluid inclusions in quartz indicate that ore fluids comprised dominantly metamorphic water with a minor contribution of magmatic or meteoric water. Available isotopic ages of these mineralized systems cluster in Late Carboniferous to Early Permian（271~300 Ma），reflecting the metallogenic episodes that occurred during post- subduction collision regimes. The late Carboniferous to Early Permian geology of the Dalabute is interpreted as an collision zone developed between two arcs，which lead to the mineralization of the Anqi and Sartohay metallogenic belt.