To investigate the dynamic response characteristics and stability of a high in-situ stress roadway rock enclosures under blasting vibrations， the comprehensive gas management lane of Pan San Mine in Huainan is used as the engineering background. The research method of theoretical analysis of the blasting operation disturbing the roadway envelope rock model is established. Based on the stress wave propagation theory and the wave front momentum conservation theorem， the vibration equations for the roadway envelope under blasting vibration are derived. The theoretical analysis is then supplemented by the use of numerical simu? lation research methods from the perspectives of PPV （Peak Particle Velocity） attenuation characteristics and stress distribution patterns of the roadway envelope. The stability of the roadway envelope is analyzed based on the simulation results. Differences in the angle of incidence of blast stress waves lead to different dynamic response characteristics in different areas of the roadway enve? lope. These conclusions are drawn from the roadway envelope vibration equations. As the burst core distance increases， the PPV of the surrounding rock near the profile face of the roadway fluctuates and the maximum peak vibration velocity is obtained at the free face. In-situ stress has a suppressive effect on the PPV of the roadway envelope. The greater the ground stress is， the more ob? vious the suppressive effect will be. There are differences in the sensitivity of the PPV of the envelope to ground stress at different locations in the roadway. As the magnitude of the in-situ stress increases， the force state of the roadway envelope under blast vibra? tion changes from tensile shear to compressive shear， and the maximum principal and shear stresses increase. The study reaches the conclusions that as the depth of burial increases， the ground stress factor cannot be ignored when assessing the stability of the tunnel envelope under blasting vibration. In addition to the straight walls of the roadway， the corners and arch walls are also hazard? ous areas that should be reinforced and monitored for the Pan San Mine project site.