In order to reduce the infrasound effectively and protect the acoustic environment around oil and gas compressor stations， intensively studied are generation and propagation rule of the infrasound from compressor unit and taken are some nichetargeting noise control measures according to spectral analysis results. Through field investigation， compressor unit noise measurement， data and spectral analysis and acoustics theory demonstration， it’s proved that there is high sound pressure level infrasound in compressor unit noise. Prepared are control measures of audible sound and infrasound according to the noise spectrum. Comparative analysis is conducted on the noise spectrums before and after noise control measures are taken and analysis results show that effects of audible sound and infrasound on surrounding acoustic environment have been obviously reduced.