With A1 type vehicles of Guangzhou Metro Line 1 as the object, the noise in metro vehicle compartments, when the vehicle was traveling on the operation line, was measured and analyzed using a multi-channel measurement and analysis system. The result shows that when the radius of curvature of the curved line is less than 600 m, the main frequency band of the noise in the metro vehicle compartments is ranged between 630 Hz and 1 000 Hz;with the increasing of the radi-us of curvature, different frequency bands of the noise become uniform gradually and the main frequency band is not obvi-ous;traveling speed of the train has a large influence on the medium and high frequency noises in the vehicle compartments. The measurement and analysis of the noise may provide a basis for design and maintenance of metro vehicles and subway lines.%以广州地铁一号线A1型车为对象，运用多通道噪声测试与分析系统，对正线运行车辆客室内噪声进行测试分析，获得一号线各区间客室噪声变化数据，结果表明：当曲线半径小于600 m时，客室噪声主频带位于630 Hz和1000 Hz之间，随着曲线半径的增大，各频段噪声分布趋于均匀，主频逐渐不明显；列车运行速度对客室内中、高频噪声影响较大。噪声测试分析为车辆及线路的设计和维护提供参考数据。
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