Vehicle foundation brake will produce severe vibration and noise during braking, influencing occupant comfort and reducing the life of automotive components. Meanwhile, the sharp brake noise (screaming) seriously interferes with people's normal life. Thus, the governance of abnormal brake sound is very important. In this paper, the generation mechanism, features and influencing factors of brake were summarized. The theory and research progress on brake noise suppression and prevention were reviewed and analyzed. For the outstanding problems of traditional vehicle abnormal brake sound detection, such as lacking of detection and analysis methods, inconvenience of data processing and poor flexibility, an abnormal brake sound localization method based on frequency-domain blind signal processing was proposed. Key technologies were introduced in details, such as noise suppression during road test based on dynamic particle swarm optimization morphological filtering, using unit fixed-point algorithms based on kurtosis maximization to separate and extraction complex components and solving permutation indeterminacy based on improved KL-distance. Finally, an actual brake failure acoustic signal extraction proved the effectiveness and reliability of this method.