The 3D geological modeling is one of the key technologies in spatial analysis and visulization of geological data. To improve the speed

efficiency and accuracy of geological modeling

a fast progressive 3D geological modeling method (FPGM) from point to line to surface to body with borehole data has been proposed in this paper. Firstly

the geological profiles are constructed with strata data of boreholes by human-computer interaction

then the real positon of geological profile is restored in 3D space according to the coordinates of the boreholes. After that

using the same strata lines in sections

a series of strata surfaces model are constructed by Kriging interpolation. Based on the steps above

the frame model would be accomplished. Finally

the binary space partitioning (BSP) vector shear technology is adopted to cut the boundary of the model

thus a 3D geological model of study area is constructed. This method has been applied to the construction of 3D geological modeling in Shangjie Town

Fuzhou city

showing that this method can not only realize the fast construction of 3D geological model but also improve the accuracy of the model remarkably.