Civil 3D,as a technical solution for the BIM design and application in the geotechnical industry,has become a common technical software for 3D geological modeling.In view of the visualization of borehole data in Civil 3D geological modeling,we study the kriging interpolation algorithm and its advantages.Adopting the construction idea of “point-plane-volume” 3D geological model,we propose to use longitudinal intercalation points and Kriging interpolation to interpolate and fill the borehole data of the geological strata to complete the construction of 3D geological strata model.The results show that the surface of geological boundary layer treated by Kriging interpolation is relatively smooth,and the geological rock mass created can accurately and directly express the geological and geotechnical trend and distribution.The research results may serve as reference for the geotechnical units to carry out BIM work.