Surface damage analysis method and system for pipeline magnetic flux leakage detection

The invention discloses a surface damage analysis method and system for pipeline magnetic flux leakage detection, and the method comprises the steps: carrying out the magnetic flux leakage detection of a pipeline, and obtaining a magnetic flux leakage signal; performing data extraction on the magnetic flux leakage signal according to the pipeline damage category group, and giving corresponding feature data; carrying out dimension reduction processing on the feature data based on principal component analysis, and giving the feature data after dimension reduction; and based on a pre-constructed flaw classification model, carrying out analysis processing on the feature data after dimension reduction, and giving a surface flaw classification result. According to the method, feature data extraction can be carried out on different damage magnetic flux leakage signals, damage classification is achieved, the intelligent detection and maintenance level of pipeline infrastructures is improved, and it is guaranteed that