Abstract: The distribution of effective hydrocarbon kitchens determines the target for petroleum exploration. The spatial distribution of Carboniferous hydrocarbon source rocks in Kelameili gas field of Junggar basin is unclear due to its coexistence with volcanic rocks, which leads to the poor quality of seismic data to the further study. Based on the structural pattern determined by geophysical data and the analysis of a large number of source rocks data in this area, this paper rebuilt the spatial distribution of the Carboniferous effective hydrocarbon kitchen. The result shows that Dishuiquan sag, Dongdaohaizi sag and Wucaiwan sag are three sedimentary centers of the Carboniferous source rocks, with individual thickness of over 450 m. The organic matter types are dominated by Type II and Type III. The matured and highly matured source rocks are also distributed in Dishuiquan sag，Dongdaohaizi-Wucaiwan sag and Sannan sag