In order to ensure the safe mining of 21301 working face of Yangquan Mining Group No.2 Mine and effectively manage the mine gas, a three-dimensional gas extraction technology combining double-side drilling and extraction of this coal seam, high extraction alley extraction of adjacent seam and buried pipe extraction in the mining area was proposed, the geological conditions and the state of gas distribution were analyzed in the mine. After the implementation of this technical measure, the gas content of 21301 working face was greatly reduced, and the gas content of working face, return air roadway and tail wind flow was below 0.4%, and the gas content of upper corner was below 0.6%, which reached the expected extraction target. The application of this gas extraction measure effectively solved the problems of large gas gushing from the working face and high gas content in the working space, provided the basis for gas prevention and control during the normal recovery of the working face, guaranteed the safe and efficient production of the working face, and provided important reference for the gas management of similar working faces in the future.