Abstract: Submersible tubular pump stations are widely used because of their compact structures,straight flow channels and high efficiency.However,it will also produce excessive vibration and noise during operation,which will bring harm to pump station operators,instruments and equipment. With the continuous improvement of our requirements for environmental protection of pump stations,it is necessary to reasonably formulate the acoustic environment control objectives and treatment technical paths of pump stations. The noise of the pump unit of a submersible tubular pump station under multiple working conditions is tested. It is found that the noise distribution characteristics of each working face of the pump station are obvious,and the degrees of exceeding the relevant national standards are different. The excessive noise frequency is mainly concentrated in medium and low frequency. The foundation pit of the pump station can be regarded as a relatively steadystate sound source emitting a large number of medium and low-frequency excessive noises. The study reveals the noise distribution law and sound source characteristics of different working faces of this type of pump station. It provides a basis for the noise research and later treatment of the pump station. It also has scientific guiding significance for improving the operation environment,operation efficiency and modern management level of the pump station.