Abstract: In order to study gas occurrence law for Jixian Mine, the current paper adopts the principle of gas geology and the gas occurrence step control theory to divided Jixian Mine into shallow gas zone of weathering and deep gas zone. In the shallow area, the field test and theoretical derivation predicted that the buried depth of coal seam was 450~500 m for Jixian Field gas zone of weathering lower boundary, which was verified during the production. In the deep area, first of all, the general rules of change for buried depth in Jixian coal seam gas field was forecasted through the certain data model; then through the gas geological method, the magmatic activity, fold structure and other factors on the influence of the gas occurrence were analyzed, which divided the gas enrichment region.