Abstract: Wellbore water gushing is a major hidden danger for safe mining in coal mines. By analyzing the water gushing mechanism caused by the rupture of the air shaft wellbore in Chenmanzhuang Coal Mine, repair technologies of implementing inter-wall grouting and wellwall reinforcement are proposed. Aiming at the water gushing situation caused by the rupture of the air shaft wellbore in Chenmanzhuang Coal Mine, the rupture water-outflow characteristics and rupture mechanism from the wellbore are analyzed, it is found that the cause of the wellwall rupture is the melting of thick freezing walls, the water drainage of surface soil aquifers, and the combined action of mining, which led to the subsidence and deformation of the soil layers around the wellbore, causing the wellwall to bear vertical additional forces. Based on this, wellwall reinforcement and repair technologies of inter-wall grouting and installating dense well circles are implemented for the wellbore: a total of 5 rows of grouting holes are arranged in the rupture section, with 6 grouting holes in each row and a grouting pressure of 2 MPa; a combination way of installating dense well circles and filling with high-strength materials is adopted to reinforce the wellwall of the rupture section. The engineering practice shows that this governance measure effectively alleviates the vertical additional stress on the wellbore, greatly reduces the water gushing amount, achieves good effects, and provides technical reference and practical basis for the governance of water gushing in coal mine wellbores under similar conditions.