Noise reduction structure of booster

The utility model provides a noise reduction structure of a booster. The noise reduction structure comprises a pressure relief channel of the booster and a noise reduction assembly, wherein the pressure relief channel is provided with a high-pressure pipeline and a low-pressure pipeline, the noise reduction assembly is arranged at the gas flow position between the high-pressure pipeline and the low-pressure pipeline and provided with a plurality of ventilation holes with the hole diameter smaller than 20 mm, and the noise reduction assembly is arranged in the mode that high pressure gas can only pass through the ventilation holes and then enter the low-pressure pipeline when the high-pressure pipeline and the low-pressure pipeline are communicated. The noise reduction structure of the booster is good in gas releasing sound eliminating effect and low in cost.