文章从煤层气成分、赋存状态、甲烷含量及压力等方面对韩城北区３＃煤煤层气的赋存规律进行了详细分析与总结，揭示出褶皱构造等４个因素是控制３＃煤层甲烷大小的主要地质因素。研究成果为矿区煤层气勘探、开发及定量预测提供了依据。 This paper analyzes and summarizes the occurrence regularity of 3 # coalbed methane in North of Hancheng from the aspect of coalbed gas composition, occurrence state, methane content and pressure, revealing that the four factors of fold structure control the methane The size of the main geological factors. The research results provide the basis for CBM exploration, development and quantitative prediction in the mining area.