Abstract: The influence of different dosage on the deflagration effect of high-energy combustion agent, this paper studies the propagation law of the precursor pressure wave and the intensity change of the pressure wave through the high-speed shading system and the over pressure detection system. Three drug packets of the same size were designed with the dosage as a variable, and four pressure sensors with different positions were set up to make a comprehensive measurement of the pressure wave. Through shadow photo analysis of the precursor pressure wave and combustion gas fluctuation, comparative analysis of three kinds of dosage pressure wave propagation process, speed change, pressure change, and combining the theoretical analysis and experimental results, get the precursor pressure wave in air flow field and pressure velocity evolution and pressure distribution, and the feasibility of high-energy explosive combustion agent rock theory. The results show that the high-energy combustion agent enters a long combustion process from the ignition. The combustion agent releases a large amount of high temperature and high pressure gas, which accumulates the temperature and increases the pressure inside the package and reaches the pressure. After reaching the cracking pressure limit of the package, the precursor pressure wave and the combustion gas propagate outward irregularly at the center of the combustion source, and then the two gradually separate. The precursor pressure wave travels faster, and the pressure wave travels farther away in the same time. The larger the dosage, the shorter the tired pressure process, the faster the propagation speed of the precursor pressure wave, the more high temperature and high pressure gas produced by combustion, the better the crushing effect of the drug package, and the more regular the propagation form of the precursor pressure wave and combustion gas. Over pressure peak pressure, pressure wave positive pressure time and peak impulse all show an increasing trend with the increase of drug dosage. The deflagration effect of the non-explosive high-energy combustion agent, the propagation form of the precursor pressure wave, and the rock breaking ability are directly proportional to the dosage of the drug, and the greater the drug dosage, the greater the power of the high-energy combustion agent.