The invention relates to the field of geological modeling, and particularly relates to a modeling method for a stratified geological body containing standard stratums based on multi-source data coupling. The difference lie in that the modeling method comprises the steps of a) selecting a modeling region, extracting multi-source data and performing coupling; b) building a regional stratigraphic sequence table covering the whole modeling region according to the step a); c) determining bedding plane sequence numbers of all stratums contained in each drilled hole; d) generating a triangular net, and forming a bedding plane of each stratum; e) performing interpolation on the elevation of the bedding plane of each stratum generated in the step d) so as to smooth the bedding plane of each stratum; f) performing intersection processing on the stratum bedding planes processed in the step e), and adjusting the stratum elevation; and g) stitching the triangular nets of vertically adjacent stratum bedding planes in the vertical direction so as to form a complete three-dimensional geological entity model. According to the invention, all kinds of data are constrained, the existing data sources are sufficiently utilized, the modeling result is more consistent with actual conditions, and the accuracy is higher.