The Computer Simulation Technology Applied in Simulation of the Complex Three-Dimensional Geological Model

China is a vast country. There are a lot of precious resources such as mineral resources, coal, shale gas and oil under the vast territory. However, the real underground space distribution and structure are complex, and the limited exploration data and literature may lead to deviation in the understanding of geologists and mistakes in decision-making, resulting in some avoidable losses. Therefore, this paper focuses on the analysis of complex 3D geological models(GM), and studies the application of computer simulation technology(CST) in simulating complex 3D GM; The basic content and process of 3D GMing as well as the collection and processing of geological data are discussed; The CST is used to simulate the complex 3D GM for analysis, and the simulation experiment is used to test the performance of the CST to simulate the tetrahedron quality of the complex 3D GM after optimization. The test results verify the effectiveness of the CST applied to the complex 3D GM.