Drawing method and device of three-dimensional structure diagram

The invention relates to a drawing method and device of a three-dimensional structure diagram. The method comprises the following steps that grid data of a geologic horizon in an isochronal stratigraphic framework of a to-be-identified area, a contour map and a flow line broken line graph are established, image layers are overlapped and displayed by combining a drilling position diagram established according to drilling data, so that an ancient three-dimensional structure graph with a flow line is obtained, and the ancient three-dimensional structure graph can be used by an oil geologist for intuitive displaying of space characteristics of an ancient structure and a current structure of the certain geologic horizon and an ancient fluid flow line, an convergence area and direction in a three-dimensional stereoscopic mode, the requirements of different research purposes are met, oil and gas exploration of the to-be-identified area is guided. The method can be used for realizing three-dimensional stereoscopic di