Abstract: In order to study the occurrence and migration law of gas under the influence of complex geological factors such as geological structure, coal quality and stratigraphic characteristics, taking xiaohuigou coal mine as an engineering case, the accurate prediction of gas content under the dominant influence of geological structure is deeply studied, and the means of Pan Kriging interpolation model and gas geological unit division are adopted, The gas content prediction algorithm model is deeply discussed, and the dynamic gas geological prediction and analysis system is developed by using computer software technology and gas geological classification evaluation method. The results show that the system realizes the dynamic drawing and comprehensive analysis of mine gas geological map, and completes the accurate prediction of gas content and the informatization and accurate management of gas geological information, Provide decision-making basis and auxiliary means for gas prevention and control.