Abstract: In order to explore the structural characteristics of Gemudi syncline and its influence on gas occurrence control in Shuicheng County, Guizhou Province, the geological data and production data of Gemudi syncline mine were collected, and the structural characteristics of Gemudi syncline and its influence on the gas occurrence of the mine were analyzed in depth, and the gas occurrence law in the region was summarized. The results show that Gemudi syncline is a NW-trending asymmetric syncline. The dip angle of strata in the northeast wing is steep, and the dip angle to the east end gradually decreases from 85° to 45°, and the relatively flat strata in the southwest wing are generally between 15° and 25°. The coal seam experienced multiple gas generation processes, and affected by the comprehensive effect of structure, the coal seam differentiation was serious, resulting in that the quantity of coal seams is large, but the number of coal seams that can be mined is small, mainly thin coal seam and medium-thick coal seam. The gas content of the coal seam in the northeast wing is higher than that in the southwest wing. In the same gas area and the same mine, due to the different local structures such as secondary folds, compressive reverse faults and tensile normal faults, the gas occurrence states are also different.