Abstract: In order to explore the evolution law of damage to gas containing coal under impact, a gas containing coal separation Hopkinson pressure bar (SHPB) test system was used to conduct dynamic compression tests on coal with gas pressures of 0, 0.5, 1, 1.5, and 2 MPa. Based on energy theory, the deformation and failure process of gas containing coal under impact was analyzed, and the influence of gas pressure on coal energy parameters was explored. With the help of SMP strength criterion and Weibull distribution function, a dynamic damage constitutive model of gas containing coal considering gas impact coupling was established by combining energy consumption index. Research has shown that during the impact compression process, the time history curve of gas containing energy can be divided into a slow growth stage, an accelerated growth stage, and a stable stage; With the increase of gas pressure, the reflected energy of coal shows a linear increase trend, while the transmitted energy and dissipated energy show a linear decrease trend; The constitutive model curve of gas shock coupling damage has strong consistency with the experimental curve, which can accurately describe the damage evolution law of the entire stress-strain process of gas containing coal under impact.