The study of sedimentary and crystalline bedrock layers in the basin is of great significance to understand the basin's properties and evolution. In this paper, we adopted a multifrequency and multilayer H-κ stacking approach of receiver function to obtain the thickness and V_p/V_s ratio of sedimentary and bedrock layers beneath 26 temporary seismic stations in Weiyuan area. In the syncline area, the average thickness and V_p/V_s ratio of the sedimentary layer are 4.56 km and 1.92, respectively; the average thickness and V_p/V_s ratio of the bedrock layer are 37.73 km and 1.81, respectively. In the anticline area, the average thickness and V_p/V_s ratio of sedimentary layer are 3.21 km and 1.98, respectively; the average thickness and V_p/V_s ratio of bedrock layer are 40.56 km and 1.76, respectively. Combined with the results of the previous geological and geophysical studies in the area, we suggest that the study region maintains typical cratonic crust, the formation of the Weiyuan anticline may be a thin-skinned structure involving in sedimentary layer, and the shale gas has little effect on the V_p/V_s ratio of the sedimentary layer.