Abstract: Porphyry deposits are widely spread over the world, and their mineralization mechanisms hold significant scientific research value. Numerical simulation is an important approach to quantitatively and continuously analyzing the formation of ore deposits, offering answers to questions such as the temporal-spatial distribution of mineralization/alteration and migration-evolution of ore-forming fluids. This research established simple geometric model of porphyry deposits, and conducted multi-field coupled (heat-transfer, fluid-flow, chemical reaction, diffusion) numerical simulation of its formation. Results show that using simple geometric models in metallogenic simulation research is feasible, which has certain enlightening significance for searching for deep prospecting targets and explaining the genesis of large and ultra-large porphyry deposits. This method can not only be used to calculate the spatial distribution of mineralization and achieve deep prospecting prediction, but also to infer the tectonic environment during the mineralization period through different forms of mineralization distribution, thereby enabling a deeper study of issues such as the ancient mineralization environment. In addition, simple models are characterized by low computational cost, minimal human influence, and high credibility, and can play an important role in the study of some specific metallogenic theoretical issues. Currently, there are still a series of issues in the numerical simulation research of ore-forming processes, such as idealized/simplified mathematical models and low universality. With the future advancements in numerical simulation theories, methods, computer hardware and software, analytical testing methods, as well as the application of machine learning and data assimilation, these scientific issues will gradually be resolved and promote further development of numerical simulation of ore formation.