The fully mechanized mining face of 9228 thin coal seam in Tiexin mine is affected by the syncline structure and the gas dissipation of No.10 coal seam in close range. It is characterized by medium gas content, low permeability, significant interference of adjacent layers and local accumulation. The existing gas control has limited effect due to the lack of spatial distribution cognition, and the existing research focuses on thick coal seam or non-adjacent layer interference working face, which is difficult to support the demand of thin coal seam control. Therefore, this paper takes the working face as the object, uses the three-dimensional grid method to lay out 299 measuring points, and combines the inverse distance weight interpolation method to analyze the gas distribution law. The results show that along the tendency, the space under the support is divided into four gas concentration intervals, and the rear of the support is divided into three intervals and the concentration is higher than that in the front. The gas gradient ( 0.0003%/m ~ 0.0004%/m ) of 20-80 m in the air intake roadway is significantly lower than that in the far air intake roadway area ( 0.0006%/m ~ 0.002%/m ). Along the direction of the working face, the minimum value of gas concentration shows the characteristics of migration from the goaf side to the coal wall side, and the ratio of the maximum value of gas concentration to the average value of the working face is 1.23. It is higher than 1 ~ 1.17 of the general mining face, and the local inhomogeneity is more prominent. This study clarifies the gas distribution law of 9228 working face, which can provide support for the optimization of its control scheme and the safemining of thin coal seam working face affected by adjacent layer gas.